CORNERSTONE BUILDING BRANDS, INC., 10-Q filed on 5/8/2026
Quarterly Report
v3.26.1
Cover
3 Months Ended
Apr. 04, 2026
shares
Cover [Abstract]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Apr. 04, 2026
Document Transition Report false
Entity File Number 1-14315
Entity Registrant Name Cornerstone Building Brands, Inc.
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 76-0127701
Entity Address, Address Line One 5020 Weston Parkway
Entity Address, Address Line Two Suite 400
Entity Address, City or Town Cary
Entity Address, State or Province NC
Entity Address, Postal Zip Code 27513
City Area Code 866
Local Phone Number 419-0042
Entity Current Reporting Status No
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock, Shares Outstanding 0
Entity Central Index Key 0000883902
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q1
Amendment Flag false
v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF LOSS - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Income Statement [Abstract]    
Net sales $ 1,209,347 $ 1,175,334
Cost of sales 1,049,248 938,799
Gross profit 160,099 236,535
Selling, general and administrative expenses 271,319 255,382
Loss from operations (111,220) (18,847)
Interest expense (125,929) (117,681)
Foreign exchange loss (1,061) (313)
Other income, net 5,900 427
Loss before income taxes (232,310) (136,414)
Income tax benefit (39,784) (25,790)
Net loss $ (192,526) $ (110,624)
v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Statement of Comprehensive Income [Abstract]    
Net loss $ (192,526) $ (110,624)
Other comprehensive loss, net of income tax    
Foreign exchange translation gain (loss) (4,144) 1,708
Unrealized gain (loss) on derivative instruments, net of income tax of $(47) and $238, respectively 507 (690)
Amount reclassified from accumulated other comprehensive loss into earnings, from derivative instruments, net of income tax of $783 and $1,329, respectively (2,486) (4,411)
Other comprehensive loss (6,123) (3,393)
Comprehensive loss $ (198,649) $ (114,017)
v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Statement of Comprehensive Income [Abstract]    
Unrealized gain (loss) on derivative instruments, tax $ (47) $ 238
Amount reclassified, tax $ 783 $ 1,329
v3.26.1
CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Apr. 04, 2026
Dec. 31, 2025
Current assets:    
Cash and cash equivalents $ 136,172 $ 135,452
Accounts receivable, net 575,365 567,065
Inventories, net 805,652 745,476
Assets held for sale 147,011 147,011
Other current assets 75,230 109,346
Total current assets 1,739,430 1,704,350
Property, plant and equipment, net 1,029,918 1,058,609
Lease right-of-use assets 452,117 458,708
Goodwill 737,759 739,408
Intangible assets, net 2,165,161 2,209,818
Other assets, net 29,841 37,843
Total assets 6,154,226 6,208,736
Current liabilities:    
Current portion of long-term debt 34,000 34,000
Current portion of lease liabilities 86,440 96,866
Accounts payable 395,653 269,393
Accrued income and other taxes 26,289 23,175
Employee-related liabilities 88,412 91,149
Rebates, warranties and other customer-related liabilities 127,393 154,917
Accrued interest 38,248 68,375
Other current liabilities 40,667 43,109
Total current liabilities 837,102 780,984
Long-term debt 5,123,657 4,967,387
Long-term lease liabilities 357,740 358,435
Deferred income tax liabilities 304,175 363,540
Other long-term liabilities 239,440 243,487
Total liabilities 6,862,114 6,713,833
Commitments and contingencies (Note 13)
Equity:    
 Common stock, $0.01 par value, 1,000 shares authorized, issued and outstanding at April 4, 2026 and December 31, 2025 0 0
Additional paid-in capital 1,540,044 1,544,186
Accumulated deficit (2,223,915) (2,031,389)
Accumulated other comprehensive loss (24,017) (17,894)
Total equity (deficit) (707,888) (505,097)
Total liabilities and equity (deficit) $ 6,154,226 $ 6,208,736
v3.26.1
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Apr. 04, 2026
Dec. 31, 2025
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 1,000 1,000
Common stock, shares issued (in shares) 1,000 1,000
Common stock, shares outstanding (in shares) 1,000 1,000
v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2024   1,000      
Beginning balance at Dec. 31, 2024 $ 204,877 $ 0 $ 1,540,572 $ (1,328,431) $ (7,264)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Other comprehensive loss (3,393)       (3,393)
Share-based compensation (3,747)   (3,747)    
Net loss (110,624)     (110,624)  
Ending balance (in shares) at Mar. 29, 2025   1,000      
Ending balance at Mar. 29, 2025 $ 87,113 $ 0 1,536,825 (1,439,055) (10,657)
Beginning balance (in shares) at Dec. 31, 2025 1,000 1,000      
Beginning balance at Dec. 31, 2025 $ (505,097) $ 0 1,544,186 (2,031,389) (17,894)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Other comprehensive loss (6,123)       (6,123)
Share-based compensation (4,142)   (4,142)    
Net loss $ (192,526)     (192,526)  
Ending balance (in shares) at Apr. 04, 2026 1,000 1,000      
Ending balance at Apr. 04, 2026 $ (707,888) $ 0 $ 1,540,044 $ (2,223,915) $ (24,017)
v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Dec. 31, 2025
Cash flows from operating activities:      
Net loss $ (192,526) $ (110,624)  
Adjustments to reconcile net loss to net cash used in operating activities:      
Depreciation and amortization 102,868 103,751  
Amortization of debt issuance costs, debt discount and fair values 28,194 26,171  
Share-based compensation expense (4,142) (3,747)  
Amortization of acquisition related step-up adjustments 1,732 1,843  
Loss (gain) on disposal of assets (793) (490)  
Impairment of property, plant and equipment 349 0  
Change in fair value of contingent consideration 126 814  
Bargain purchase gain (5,342) 0  
Unrealized loss on foreign currency exchange rates 1,061 313  
Provision for credit losses 3,468 1,746  
Deferred income taxes (58,808) (93,559)  
Changes in operating assets and liabilities, net of effect of acquisitions:      
Accounts receivable, net (12,475) (60,514)  
Inventories, net (60,843) (66,992)  
Income and other taxes 38,499 64,510  
Other current assets (1,350) 9,933  
Accounts payable 118,578 55,305  
Accrued expenses (57,420) (64,703)  
Other, net (8,763) 115  
Net cash used in operating activities (107,587) (136,128)  
Cash flows from investing activities:      
Acquisitions, net of cash acquired 7,490 0  
Capital expenditures (25,379) (37,088)  
Proceeds from sale of property, plant and equipment 1,371 819  
Net cash used in investing activities (16,518) (36,269)  
Cash flows from financing activities:      
Proceeds from revolving credit facilities 140,000 170,000  
Payments on term loans (8,500) 0  
Payment of contingent consideration (5,343) 0  
Net cash flows provided by financing activities 126,157 170,000  
Effect of exchange rate changes on cash and cash equivalents (1,332) 5,282  
Net increase in cash and cash equivalents 720 2,885  
Cash and cash equivalents at beginning of period 135,452 159,529 $ 159,529
Cash and cash equivalents at end of period 136,172 162,414 $ 135,452
Supplemental cash flow information:      
Interest paid, net of interest rate swaps 127,754 126,422  
Income taxes paid (refunded) (21,334) 904  
Capital expenditures included within accounts payable $ 8,107 $ 5,256  
v3.26.1
Basis of Presentation
3 Months Ended
Apr. 04, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Basis of Presentation Basis of Presentation
Description of Business
Cornerstone Building Brands, Inc. (“Cornerstone Building Brands” or, collectively with its subsidiaries, unless the context requires otherwise, the “Company”) is a holding company incorporated in the State of Delaware. The Company is a leading exterior building products manufacturer by sales in North America and serves residential and commercial customers across new construction and the repair and remodel end markets. The Company is organized in three reportable segments: Windows & Doors, Siding & Accessories and Metal Solutions. For additional information about the Company’s segments, see Note 14 — Reportable Segment and Geographical Information.

Basis of Presentation
The accompanying Condensed Consolidated Financial Statements are presented in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). These Condensed Consolidated Financial Statements have been prepared in accordance with the Company's accounting policies and on the same basis as those financial statements included in the Company’s latest Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Form 10-K”), and should be read in conjunction with those Consolidated Financial Statements and the Notes thereto. Certain disclosures normally included in the Company’s Consolidated Financial Statements prepared in accordance with U.S. GAAP have been omitted on a basis consistent with the rules and regulations of the SEC. Certain items have been reclassified in the prior year disclosures to conform to the current year presentation.
The accompanying Condensed Consolidated Financial Statements include the accounts and operations of the Company and its majority-owned subsidiaries and all adjustments (consisting of normal recurring adjustments) that the Company considered necessary to present a fair statement of its results of operations, financial position and cash flows. All significant intercompany accounts and transactions have been eliminated in consolidation.
v3.26.1
Significant Accounting Policies
3 Months Ended
Apr. 04, 2026
Accounting Policies [Abstract]  
Significant Accounting Policies Significant Accounting Policies
Use of Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, net sales and expenses and related disclosures of contingent assets and liabilities in the Condensed Consolidated Financial Statements and accompanying notes. These estimates include, but are not limited to: establishing the allowance for expected credit losses; the allowance for slow moving and obsolete inventory; the valuation of goodwill; establishing useful lives for and evaluating the recovery of our finite-life, long-lived assets; recognizing the fair value of assets acquired and liabilities assumed in business combinations; determining the fair value of contingent consideration; accounting for rebates and product warranties; the valuation and expensing for share-based compensation; certain assumptions made in accounting for pension benefits; accounting for contingencies and uncertainties; and accounting for income taxes. Actual results may differ from the estimates used in preparing the Condensed Consolidated Financial Statements.
Cash and Cash Equivalents
Cash and cash equivalents mainly consist of highly liquid, unrestricted savings, checking and other bank accounts.
Accounts Receivable, Net
The Company reports accounts receivable net of an allowance for expected credit losses. The Company establishes provisions for expected credit losses based on the Company’s assessment of the collectability of amounts owed to the Company by its customers. Such allowances are included in Selling, general and administrative expenses in the Company’s Condensed Consolidated Statements of Loss. In establishing the allowance, the Company considers changes in the financial position of a customer, age of the accounts receivable balances, availability of security, unusual macroeconomic conditions, lien rights and bond rights as well as disputes, if any, with its customers. Uncollectible accounts are written off when a settlement is reached for an amount that is less than the outstanding historical balance, all collection efforts have been exhausted, or any legal action taken by the Company has concluded. The Company’s allowance for expected credit losses was $22.6 million and $20.8 million at April 4, 2026 and December 31, 2025, respectively.
Assets Held for Sale
The Company records assets held for sale at the lower of the carrying value or fair value less costs to sell. The following criteria are used to determine if property is held for sale: (i) management has the authority and commits to a plan to sell the property; (ii) the property is available for immediate sale in its present condition; (iii) there is an active program to locate a buyer and the plan to sell the property has been initiated; (iv) the sale of the property is probable within one year; (v) the property is being actively marketed at a reasonable sale price relative to its current fair value; and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made. In determining the fair value of the assets less costs to sell, the Company considers factors including current sales prices for comparable assets in the area, recent market analysis studies, appraisals and any recent legitimate offers. If the estimated fair value less costs to sell of an asset is less than its current carrying value, the asset is written down to its estimated fair value less costs to sell.
As of December 31, 2025, the Company classified the land and buildings assets related to certain facilities within the Metal Solutions segment as Assets held for sale on the Condensed Consolidated Balance Sheets because all of the criteria used in this determination had been met, including management’s commitment to a plan to sell, active marketing efforts, and an expectation that the sale would be completed within one year. Subsequent to year-end and prior to the issuance of the consolidated financial statements, management determined that the completion of a sale-leaseback transaction was no longer probable, though no adjustments to the classification or measurements of the assets were required. However, during the first quarter of 2026, the Company determined that the completion of a sale-leaseback transaction was once again probable, and such assets remained classified as held for sale. The total carrying amount of assets held for sale was $147.0 million as of both April 4, 2026 and December 31, 2025.
Equity Method Investments
The Company accounts for investments in companies over which it has the ability to exercise significant influence, but not control, using the equity method of accounting. Under the equity method, the Company’s investments are carried at cost and adjusted for the Company’s proportionate share of net income or loss and dividends received. The Company acquired an investment as part of the acquisition of Mueller Supply Company that it accounts for under the equity method of accounting, as the Company possesses the ability to exercise significant influence, but not control, over the operating and financial policies of the investment. The carrying value of the investment was $10.6 million as of April 4, 2026 and $11.0 million as of December 31, 2025. The investment is recognized in Other assets, net on our Condensed Consolidated Balance Sheets for both comparable periods.
Recent Accounting Pronouncements
In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets (“ASU 2025-05”). ASU 2025-05 provides entities with a practical expedient to simplify the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under ASC 606, Revenue From Contracts With Customers. Under this practical expedient, an entity is allowed to assume that the current conditions it has applied in determining credit loss allowances for current accounts receivable and current contract assets remain unchanged for the remaining life of those assets. The Company adopted ASU 2025-05 effective January 1, 2026 on a prospective basis and elected to apply the practical expedient. This adoption did not have a material impact on the Company’s consolidated financial statements and disclosures.
In November 2024, the FASB issued ASU No. 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”), which improves disclosure requirements and provides more detailed information about an entity’s expenses, specifically amounts related to purchases of inventory, employee compensation, depreciation, intangible asset amortization and selling expenses, along with qualitative descriptions of certain other types of expenses. This change is effective for annual periods beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact of ASU 2024-03 on its consolidated financial statements and disclosures.
In September 2025, the FASB issued ASU No. 2025-06, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software (“ASU 2025-06”). ASU 2025-06 modernizes and clarifies the threshold for when an entity is required to start capitalizing software costs and is based on when (i) management has authorized and committed to funding the software project and (ii) it is probable that the project will be completed and the software will be used to perform the function intended. This change is effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods, with early adoption permitted. Entities can elect to apply this guidance prospectively, retrospectively, or using a modified transition approach. The Company is currently evaluating the impact of ASU 2025-06 on its consolidated financial statements and disclosures.
In November 2025, the FASB issued ASU No. 2025-09, Derivatives and Hedging (Topic 815): Hedge Accounting Improvements (“ASU 2025-09”). ASU 2025-09 refines and clarifies existing hedge accounting guidance subject to ASC 815 to align financial reporting more closely with an entity’s risk management activities and to address diversity in practice identified by stakeholders. This change is effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods, with early adoption permitted. Entities are to apply this guidance prospectively. The Company is currently evaluating the impact of ASU 2025-09 on its consolidated financial statements and disclosures.
In December 2025, the FASB issued ASU No. 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements (“ASU 2025-11”). ASU 2025-11 is intended to improve the navigability of the guidance in ASC 270, Interim Reporting, and clarify when it applies. Under the amendments, an entity is subject to ASC 270 if it provides interim financial statements and notes in accordance with GAAP. ASU 2025-11 also addresses the form and content of such financial statements, interim disclosure requirements, and establishes a principle under which an entity must disclose events since the end of the last annual reporting period that have a material impact on the entity. This change is effective for interim reporting periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. Entities can elect to apply this guidance prospectively or retrospectively. The Company is currently evaluating the impact of ASU 2025-11 on its consolidated financial statements and disclosures.
v3.26.1
Acquisitions
3 Months Ended
Apr. 04, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]  
Acquisitions Acquisitions
Acquisition of Metal Sales
In September 2025, the Company completed the acquisition of Metal Sales Manufacturing Corporation (“Metal Sales”) for a preliminary purchase price of $181.8 million, including a base purchase price of $200.0 million, subject to closing date cash and working capital adjustments. Headquartered in Sellersburg, Indiana, Metal Sales is a leading manufacturer of metal building systems and components serving high-growth and diverse end-markets through a multi-channel network. As of closing in September 2025, Metal Sales had approximately 900 employees at 21 facilities across the United States. This acquisition was funded by borrowing under the Company’s ABL Facility, defined in Note 7 — Debt. Metal Sales is included in the Company’s Metal Solutions reportable segment.
The closing cash and working capital adjustments were finalized during the first quarter of 2026, and the Company received cash proceeds of $7.1 million representing a reduction of the preliminary purchase price to an adjusted purchase price of $174.7 million. The purchase price allocation below is based upon provisional information and is subject to revision during the measurement period (up to one year from the acquisition date) as additional information concerning valuations is obtained. During the measurement period, as the Company obtains new information regarding facts and circumstances that existed as of the acquisition date that, if known, would have resulted in revised estimated values of those assets or liabilities, the Company will accordingly revise the provisional purchase price allocation, which may include, but are not limited to, adjustments pertaining to intangible assets acquired, property, plant and equipment acquired and tax liabilities assumed.
The following table summarizes the provisional fair value of net assets acquired and liabilities assumed:
(Amounts in thousands)Fair Value
Assets acquired and liabilities assumed:
Cash and cash equivalents$1,499 
Accounts receivable41,720 
Inventories76,339 
Property, plant and equipment152,055 
Trade name and customer relationship intangibles11,000 
Lease right-of-use asset8,911 
Other assets2,164 
Total assets acquired293,688 
Accounts payable and other liabilities assumed21,843 
Employee related liabilities5,360 
Lease liabilities8,798 
Rebates and customer related liabilities7,404 
Deferred income tax liabilities16,802 
Other liabilities assumed7,601 
Total liabilities assumed67,808 
Net assets acquired225,880 
Net purchase price
(174,719)
Bargain purchase gain$51,161 
The fair value and expected useful life of identifiable intangible assets consists of the following:
($ Amounts in thousands)Fair ValueUseful Life in Years
Customer relationships$8,000 15
Trade names and other3,000 5
Total$11,000 
As a result of the transaction, the Company recognized a bargain purchase gain of $45.8 million during the year ended December 31, 2025, representing the excess of the fair value of the net assets acquired over the consideration transferred to the seller. The Company believes the bargain purchase gain resulted from an opportunistic transaction. As noted above, during the three months ended April 4, 2026, after final closing date cash and working capital adjustments were complete, there was a $7.1 million reduction in the purchase price. The cash received is reflected as a cash inflow within investing activities. The reduction in purchase price resulted in a $1.8 million increase in deferred tax liabilities and a $5.3 million additional bargain purchase gain recognized during the first quarter of 2026.
Unaudited Pro Forma Financial Information
Pro forma results of operations for the Metal Sales acquisition have not been presented, as the impact on the Company’s consolidated financial results was not material.
Acquisition of Cold Rolled Steel
In July 2025, the Company completed the acquisition of Cold Rolled Steel, LLC (“Cold Rolled Steel”), a metal building component manufacturer, for an initial purchase price of $6.4 million, including a base purchase price of $6.5 million, less certain working capital adjustments. During the first quarter of 2026, the Company recognized a reduction in goodwill due to a reduction in the total purchase price that was based on $0.4 million of additional working capital adjustments, resulting in a final purchase price of $6.0 million. Cold Rolled Steel is included in the Company’s Metal Solutions reportable segment.
Contingent Consideration for Acquisition Completed During 2023
In August 2023, the Company completed the acquisition of M.A.C. Métal Architectural Inc. (“MAC Metal”), which became an indirect wholly-owned subsidiary of the Company. Headquartered in Saint-Hubert, Quebec, MAC Metal serves the North American residential and commercial markets with high-end steel siding and roofing products. MAC Metal is included in the Company’s Siding & Accessories reportable segment. The total purchase price included earn-out contingent consideration of $16.8 million payable over two consecutive twelve-month periods, with the first period starting in the month following the close of the acquisition; payments are based upon achieving certain adjusted EBITDA-based metrics, as defined in the purchase agreement. During the year ended December 31, 2025, the Company made a payment of $11.5 million to satisfy the first earn-out period. Total contingent consideration of $10.0 million as of December 31, 2025 is recognized in Other current liabilities on our Condensed Consolidated Balance Sheets. During the three months ended April 4, 2026, the fair value of contingent consideration increased $0.1 million, including the impact of exchange rates. During the three months ended April 4, 2026, the Company made a payment of $10.1 million to satisfy the second earn-out period, and there was no contingent consideration payable as of April 4, 2026.
v3.26.1
Inventories, net
3 Months Ended
Apr. 04, 2026
Inventory Disclosure [Abstract]  
Inventories, net Inventories, net
The following table sets forth the components of inventories:
(Amounts in thousands)April 4,
2026
December 31
2025
Raw materials and work in process(1)
$524,613 $512,391 
Finished goods281,039 233,085 
Total inventories, net
$805,652 $745,476 
(1)    The Company's work in process inventory is not significant to our Consolidated Balance Sheet due to the nature of our production processes.
v3.26.1
Goodwill and Intangible Assets
3 Months Ended
Apr. 04, 2026
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
The following table sets forth the changes in the carrying amount of goodwill by reportable segment and the accumulated impact of impairment loss:
(Amounts in thousands)Windows & DoorsSiding & AccessoriesMetal SolutionsTotal
Balance, as of December 31, 2025$82,559 $338,643 $318,206 $739,408 
Impact of acquisitions and related measurement period adjustments (1)
— — (393)(393)
Currency translation(261)(995)— (1,256)
Balance, April 4, 2026$82,298 $337,648 $317,813 $737,759 
Goodwill
$950,770 $707,551 $317,813 $1,976,134 
Accumulated impairment loss
(868,472)(369,903)— (1,238,375)
Balance, April 4, 2026$82,298 $337,648 $317,813 $737,759 
1.A measurement period adjustment was recorded in conjunction with the Cold Rolled Steel acquisition during the first quarter. See Note 3 — Acquisitions for additional information.
Intangible Assets, Net
The following table sets forth the major components of intangible assets:
($ Amounts in thousands)
Range of Life
(in Years)
Weighted Average Amortization Remaining
 (Years)
Carrying ValueAccumulated AmortizationNet Carrying Value
As of April 4, 2026 (1)
Customer lists and relationships31914$2,112,685 $(525,983)$1,586,702 
Trademarks, trade names and other51511745,072 (166,613)578,459 
Total intangible assets$2,857,757 $(692,596)$2,165,161 
($ Amounts in thousands)
Range of Life
(in Years)
Weighted Average Amortization Remaining
 (Years)
Carrying ValueAccumulated AmortizationNet Carrying Value
As of December 31, 2025 (1)
Customer lists and relationships31915$2,114,525 $(496,927)$1,617,598 
Trademarks, trade names and other51511745,999 (153,779)592,220 
Total intangible assets$2,860,524 $(650,706)$2,209,818 

(1) Net of accumulated impairment loss of $32.7 million as of April 4, 2026 and December 31, 2025.
Intangible assets are amortized on a straight-line basis. The following table sets forth the amortization expense related to intangible assets:
Three Months Ended
April 4, 2026March 29, 2025
Amortization expense$42,845 $53,274 
v3.26.1
Product Warranties
3 Months Ended
Apr. 04, 2026
Product Warranties Disclosures [Abstract]  
Product Warranties Product Warranties
The following table sets forth the changes in the carrying amount of product warranties liability:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Balance, beginning of period$188,754 $188,296 
Expense3,980 3,242 
Claims and settlements(4,590)(3,645)
Impact of acquisitions— — 
Balance, end of period$188,144 $187,893 
Reflected as:
Current liabilities – Rebates, warranties and other customer-related liabilities$23,885 $23,744 
Noncurrent liabilities – Other long-term liabilities164,259 164,149 
Total product warranty liability$188,144 $187,893 
Deferred warranty revenue of $3.1 million and $23.8 million is recorded in Other current liabilities and Other long-term liabilities, respectively, within our Consolidated Balance Sheets as of April 4, 2026 and deferred warranty revenue of $2.8 million and $24.1 million is recorded in Other current liabilities and Other long-term liabilities, respectively, within our Consolidated Balance Sheets as of December 31, 2025.
v3.26.1
Debt
3 Months Ended
Apr. 04, 2026
Debt Disclosure [Abstract]  
Debt Debt
The following table sets forth the components of long-term debt:
April 4, 2026December 31, 2025
($ Amounts in thousands)
Effective Interest RatePrincipal Outstanding
Unamortized Fair Value Adjustment (1)
Unamortized Discount and
Issuance Costs
Carrying AmountPrincipal Outstanding
Unamortized Fair Value Adjustment(1)
Unamortized Discount and
Issuance Costs
Carrying Amount
Term loan facility, due April 20288.57 %$2,470,000 $(150,231)$— $2,319,769 $2,476,500 $(166,962)$— $2,309,538 
Term loan facility, due August 20289.69 %290,250 — (10,234)280,016 291,000 — (11,201)279,799 
Term loan facility, due May 203110.05 %492,500 — (4,297)488,203 493,750 — (4,460)489,290 
6.125% Senior Notes, due January 2029
13.51 %318,699 (54,927)— 263,772 318,699 (58,909)— 259,790 
8.750% Senior Secured Notes, due August 2028
10.61 %710,000 — (23,864)686,136 710,000 — (26,465)683,535 
9.500% Senior Secured Notes, due August 2029
9.88 %500,000 — (5,239)494,761 500,000 — (5,565)494,435 
Total long-term debt$4,781,449 $(205,158)$(43,634)$4,532,657 $4,789,949 $(225,871)$(47,691)$4,516,387 
Reflected as:
Current liabilities - Current portion of long-term debt$34,000 $34,000 
Non-current liabilities - Long-term debt4,498,657 4,482,387 
Total long-term debt$4,532,657 $4,516,387 
Fair value - Senior notes - Level 1 $776,084 $1,084,438 
Fair value - Term loans - Level 21,788,076 2,536,083 
Total fair value$2,564,160 $3,620,521 
(1)    As a result of pushdown accounting in connection with the merger in July 2022, pursuant to which Cornerstone Building Brands became a privately-held company (the “Merger”), the carrying values of the term loan facility due April 2028 and the 6.125% senior notes were adjusted to fair value.
Revolving Credit Facilities
The following table sets forth the Company’s availability under its revolving credit facilities:
April 4, 2026December 31, 2025
(Amounts in thousands)AuthorizedBorrowingsLetters of Credit and Priority PayablesAuthorizedBorrowingsLetters of Credit and Priority Payables
Asset-based lending facility, due May 2029(1)
$850,000 $505,000 $67,770 $850,000 $390,000 $67,450 
Cash flow revolver(2)
92,000 25,000 — 92,000 — — 
First-in-last-out tranche asset-based lending facility, due May 2029(1)
95,000 95,000 — 95,000 95,000 — 
Total$1,037,000 $625,000 $67,770 $1,037,000 $485,000 $67,450 
(1)    The borrowing base under the Company’s asset-based lending facility (the “ABL Facility”) and the first-in-last out tranche asset-based lending facility (collectively, the "ABL Facilities”) is determined by a monthly borrowing base collateral calculation that is based on specified percentages of the previous month’s value of eligible inventory and accounts receivable, less certain allowances and subject to certain other adjustments.
(2)    Cash flow revolver commitment of $92.0 million will mature in May 2029.
The carrying amounts of the indebtedness under revolving credit facilities approximate fair value as the interest rates are variable and reflective of market rates.
Covenant Compliance
The Company’s asset-based lending credit agreement (“ABL Credit Agreement”) includes a springing maintenance covenant set at a minimum fixed charge coverage ratio of 1.00:1.00, which is tested only when specified availability is less than 10.0% of the lesser of (x) the then applicable borrowing base and (y) the then aggregate effective commitments under the ABL Facility, and continuing until such time as specified availability has been in excess of such threshold for a period of 20 consecutive calendar days. The fixed charge coverage ratio as of the most recent four quarter period is the ratio of consolidated adjusted EBITDA less certain capital expenditures to the sum of certain debt service charges, net cash taxes, certain mandatory debt payments and certain dividends.
The Company’s cash flow-based credit agreement (“Cash Flow Credit Agreement”) includes a springing financial covenant set at a maximum secured leverage ratio of 7.75:1.00, which will apply if the outstanding amount of loans and drawings under letters of credit which have not then been reimbursed exceeds 35% of the authorized borrowing amount under the Company’s cash flow-based revolving credit facility (“Cash Flow Revolver”) at the end of any fiscal quarter. The secured leverage ratio is the ratio of consolidated total secured indebtedness to consolidated adjusted EBITDA.
The Company’s debt agreements contain a number of covenants that, among other things, limit or restrict the ability of the Company and its subsidiaries to incur additional indebtedness; make dividends and other restricted payments; incur additional liens; consolidate, merge, sell or otherwise dispose of all or substantially all assets; make investments; transfer or sell assets; enter into restrictive agreements; change the nature of the business; and enter into certain transactions with affiliates. The Company is in compliance with all of its covenants as of April 4, 2026.
Interest Rate Swaps
The Company uses certain interest rate swaps to manage a portion of the interest rate risk on its term loans. The following table sets forth the terms of the Company’s interest rate swap agreements:
($ Amounts in thousands)
Notional amount$1,500,000
Forecasted term loan interest payments being hedged1-month SOFR
Fixed rate paid2.0038%
Origination dateApril 17, 2023
Maturity dateApril 15, 2026
Fair value at April 4, 2026 - Other assets, net
$970
Fair value at December 31, 2025 - Other assets, net$7,069
Level in fair value hierarchy(1)
Level 2
(1)Interest rate swaps are based on cash flow hedge contracts that have fixed rate structures and are measured against market based Secured Overnight Financing Rate (“SOFR”) yield curves. These interest rate swaps are classified within Level 2 of the fair value hierarchy because they are valued using alternative pricing sources or models that utilized market observable inputs, including current and forward interest rates.
v3.26.1
Accumulated Other Comprehensive Income (Loss)
3 Months Ended
Apr. 04, 2026
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss)
The following tables set forth the change in accumulated other comprehensive income (loss) attributable to the Company by each component of accumulated other comprehensive income (loss), net of applicable income taxes:
(Amounts in thousands)Foreign Currency Translation AdjustmentDerivatives, Net of TaxPensions, Net of Tax
Total Accumulated Other Comprehensive Income (Loss)
Balance, December 31, 2025$(19,309)$542 $873 $(17,894)
Other comprehensive income (loss)(4,144)(1,979)— (6,123)
Balance, April 4, 2026$(23,453)$(1,437)$873 $(24,017)
Balance, December 31, 2024$(25,092)$16,448 $1,380 $(7,264)
Other comprehensive income (loss)1,708 (5,101)— (3,393)
Balance, March 29, 2025$(23,384)$11,347 $1,380 $(10,657)
v3.26.1
Share-Based Compensation
3 Months Ended
Apr. 04, 2026
Share-Based Payment Arrangement [Abstract]  
Share-Based Compensation Share-Based Compensation
Class B Incentive Units
Beginning in the fourth quarter of 2022, pursuant to an incentive unit grant agreement, certain participants were granted Class B units in Camelot Return Ultimate, LP (the “Partnership” or “Camelot Return Ultimate”), an indirect parent of the Company. The Class B units provide the holder with the opportunity to participate, upon certain vesting events and subject to Partnership repurchase rights and conditions, in the appreciation of the Partnership’s equity value from the date of grant. The incentive units vest over a five-year period on a straight-line basis. For the three months ended April 4, 2026, there were no Class B units granted. The Company recognized a gain from Class B units of $4.5 million in the three months ended April 4, 2026 and a gain of $3.7 million in the three months ended March 29, 2025, due to the reversal of prior expense from terminations. The Company estimates that the unrecognized expense related to the Class B units is expected to be recognized over a weighted-average period of 3.6 years totaling $18.0 million.
Restricted Class A-2 Units
For the three months ended April 4, 2026, there were no grants of restricted Class A-2 units in the Partnership. The restricted Class A-2 units previously granted to non-employee directors vest over a one-year period and the restricted Class A-2 units previously granted to the Chief Executive Officer vest over a two year period. The Company recognized expense from restricted Class A-2 units of $0.4 million in the three months ended April 4, 2026. The Company estimates that the unrecognized expense related to restricted Class A-2 units is expected to be recognized over a weighted-average period of 1.2 years totaling $1.6 million.
v3.26.1
Income Taxes
3 Months Ended
Apr. 04, 2026
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The following table sets forth the effective tax rate for the three months ended April 4, 2026 and March 29, 2025:
Three Months Ended
April 4, 2026March 29, 2025
Effective tax rate17.1 %18.9 %
For the three months ended April 4, 2026, the Company’s estimated annual effective income tax rate of ordinary forecasted pre-tax book income was approximately 22.8%, which varied from the statutory tax rate primarily due to state income taxes, foreign tax rate differentials, and changes in the valuation allowance. For the three months ended April 4, 2026, the effective tax rate was 17.1%, which varied from the annual effective tax rate due to discrete items recorded during the period, including updates to state rates and tax impacts relating to the valuation allowance on IRC Section 163(j) business interest. The change in the effective tax rate for the three months ended April 4, 2026 compared to the three months ended March 29, 2025 is primarily due to the increase in pre-tax book losses and impacts of the valuation allowance on IRC Section 163(j) business interest. The One Big Beautiful Bill Act (“OBBBA”) was enacted on July 4, 2025. The enactment did not have a material impact on our effective tax rate for the year ended December 31, 2025 or for the three months ended April 4, 2026.
As of April 4, 2026, the Company had federal IRC Section 163(j) interest limitation carryforwards of approximately $795.3 million, which do not expire. Management has recorded a valuation allowance against these deferred tax assets totaling $53.9 million, resulting in a net federal and state impact of $12.0 million as of April 4, 2026, due to the Company’s cumulative loss position and projected sustained limitations on interest deductions. The IRC Section 163(j) valuation allowance increases the total valuation allowance to $25.3 million. The valuation allowance is provided for deferred tax assets for which the Company believes it is more likely than not that a portion of the tax benefits will not be realized. The Company determined the new valuation allowance was needed despite the more favorable EBITDA-based adjusted taxable income calculation under OBBBA.
v3.26.1
Fair Value of Financial Instruments and Fair Value Measurements
3 Months Ended
Apr. 04, 2026
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments and Fair Value Measurements Fair Value of Financial Instruments and Fair Value Measurements
The Company measures certain financial assets and liabilities at fair value on a recurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses a three-level hierarchy for fair value measurements based on the observability of inputs to the valuation of an asset or liability as of the measurement date. The three levels of the fair value hierarchy are as follows:
Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities.
Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.
Level 3 – Unobservable inputs for the asset or liability, reflecting the Company’s own assumptions about the assumptions that market participants would use in pricing the asset or liability.
Fair Value Measurements on a Recurring Basis
The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of April 4, 2026:
(Amounts in thousands)Level 1Level 2Level 3Total
Assets – Derivative instruments$— $970 $— $970 
The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2025:
(Amounts in thousands)Level 1Level 2Level 3Total
Assets – Derivative instruments$— $7,069 $— $7,069 
Liabilities – Contingent consideration
$— $— $9,954 $9,954 
The fair value for derivative instruments is determined using valuation models that incorporate observable market inputs, such as interest rates and currency exchange rates, and is classified within Level 2 of the fair value hierarchy.
The fair value of contingent consideration was estimated as of the date of the acquisition, was recorded as part of the purchase price of MAC Metal, and was subsequently re-measured to fair value at each reporting date, based on a probability-weighted analysis using a rate that reflected the uncertainty of the expected outcomes, which the Company believed was appropriate and representative of market participant assumptions. The Company fully paid the second earn-out period of the contingent consideration during the first quarter of 2026.
Fair Value Measurement Disclosure
The fair value of the Company’s short-term debt is estimated using observable market inputs, including current interest rates for similar types of borrowings. The fair value of long-term debt is determined based on quoted prices for identical or similar instruments in active markets. The fair value of the senior notes is based on quoted prices in active markets for identical liabilities. The fair value of the term loans is based on recent trading activities of comparable market instruments.
Non-Recurring Fair Value Measurements
Certain assets and liabilities are measured at fair value on a non-recurring basis. These include assets and liabilities that are measured at fair value in the event of impairment or for disclosure purposes. The discounted cash flow method under the income approach is generally employed to estimate the fair value of the reporting units or identified asset groups. For reporting units, the guideline public company method and the guideline transaction method are also utilized under the market approach. Significant assumptions inherent in estimating fair values include the projected future annual net cash flows for each reporting unit, encompassing net sales, cost of sales, selling, general and administrative expenses, depreciation and amortization, working capital, and capital expenditures. Other critical assumptions involve income tax rates, long-term growth rates, and a discount rate that appropriately reflects the risks inherent in each future cash flow stream.
Fair Value of Financial Instruments Not Measured at Fair Value
The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities approximate their fair values due to their short-term nature.
v3.26.1
Related Party Transactions
3 Months Ended
Apr. 04, 2026
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
The Company had a related party receivable with CD&R of $0.4 million as of both April 4, 2026 and December 31, 2025, representing legal fees paid on their behalf as part of the stockholder litigation described in Note 13.
The Company had a related party payable of $6.5 million and $6.5 million to our indirect parent, Camelot Return Ultimate, as of April 4, 2026 and December 31, 2025, respectively, representing monies paid by Company management for the purchase of Class A-2 units in the Partnership. See Note 9 for further discussion of share-based compensation.
v3.26.1
Commitments and Contingencies
3 Months Ended
Apr. 04, 2026
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
As a manufacturer of products primarily for use in building construction, the Company is inherently exposed to various types of contingent claims, both asserted and unasserted, in the ordinary course of business. As a result, from time to time, the Company may become involved in various legal proceedings or other contingent matters arising from claims or potential claims arising out of its operations and businesses that cover a wide range of matters, including, among others, environmental, contract, employment, including applicable benefit and pension plans, intellectual property, securities, personal injury, property damage, product liability, warranty and modification, and adjustment or replacement of component parts or units sold, which may include product recalls. The Company insures (or self-insures) against these risks to the extent deemed prudent by its management and to the extent insurance is available. Management believes that the ultimate disposition of these matters will not have a material adverse effect on the Company’s results of operations, financial position or cash flows. However, such matters are subject to many uncertainties and outcomes and are not predictable with assurance. The Company believes it is adequately reserved for all matters.
Environmental
The Company’s operations are subject to various federal, state, local and foreign environmental, health and safety laws. Among other things, these laws regulate the emissions or discharge of contaminants into the environment; govern the use, storage, treatment, disposal and management of hazardous substances and wastes; protect employee health and safety, public health and welfare and the end-users of its products; regulate the chemicals used in its products; and impose liability for the costs of investigating and remediating (as well as other damages resulting from) present and past releases of hazardous substances. Violations of these laws or of any conditions contained in environmental permits could impact the Company's current and future operations.
The Company believes it is in material compliance with all applicable laws and regulations and has recorded a liability of $4.0 million and $4.5 million as of April 4, 2026 and December 31, 2025, respectively, for certain subsurface investigation and remedial matters.
Litigation
The Company is a party to a variety of legal actions and claims arising out of the normal course of business. The outcome of litigation is inherently uncertain. If one or more legal matters were resolved against the Company in a reporting period for amounts above management’s expectations, the Company’s financial condition and operating results for that reporting period could be materially adversely affected.
v3.26.1
Reportable Segment and Geographical Information
3 Months Ended
Apr. 04, 2026
Segment Reporting [Abstract]  
Reportable Segment and Geographical Information Reportable Segment and Geographical Information
Operating segments are defined as components of an enterprise for which discrete financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) for purposes of allocating resources and evaluating financial performance. Our CODM, who is our Chief Executive Officer, reviews financial information presented on a consolidated basis for the purposes of allocating resources and evaluating financial performance. The Company is organized in five operating segments aggregated into three reportable segments: Windows & Doors (consisting of the Windows & Doors–U.S. and Windows & Doors–Canada operating segments), Siding & Accessories (consisting of the Siding & Accessories–U.S. and Siding & Accessories–Canada operating segments) and Metal Solutions, (itself an operating segment). The aggregated reportable segments share similar economic characteristics with respect to product offerings, manufacturing processes, and customer demographics. We operate principally in the U.S. with limited operations in Canada and Mexico.
The Windows & Doors reportable segment offers a broad line of windows and doors at multiple price tiers for the residential new construction and repair and remodel end markets primarily in the U.S. and Canada. Its main products include vinyl, aluminum, wood-composite and aluminum clad-wood windows and patio doors, as well as steel, wood-composite, and fiberglass entry doors.
The Siding & Accessories reportable segment offers a broad suite of products and accessories at multiple price tiers for the residential new construction and repair and remodel end markets as well as stone installation services. Its main products include vinyl siding and accessories, cellular polyvinyl chloride trim, vinyl fencing and railing, stone veneer and gutter protection products.
The Metal Solutions reportable segment designs, engineers, manufactures and distributes an extensive line of metal products for the low-rise commercial construction market under multiple brand names and through a nationwide network of manufacturing plants and distribution centers. The Company defines low-rise commercial construction as building applications of up to five stories.
Management monitors the results of its operating segments separately to make decisions about resources and evaluate performance. Management, including the Company’s chief operating decision maker, evaluates performance on the basis of segment earnings before interest, income taxes, depreciation and amortization (“Reportable segment adjusted EBITDA”).
Corporate operating expenses are not allocated to reportable segments. Corporate and Other consists specifically of corporate operating expenses that are generally not allocated to reportable segments, related-party management fees, and other items that are not assigned or allocated to reportable segments. Any intercompany net sales or expenses are eliminated in consolidation.
The following table sets forth reportable segment net sales, reportable segment adjusted EBITDA and a reconciliation to loss before income taxes:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Reportable segment net sales: 
Windows & Doors$549,778 $557,746 
Siding & Accessories247,488 240,679 
Metal Solutions414,480 378,068 
Total reportable segment net sales1,211,746 1,176,493 
Intersegment sales(2,399)(1,159)
Total net sales$1,209,347 $1,175,334 
Reportable segment adjusted EBITDA:
Windows & Doors$(5,064)$42,367 
Siding & Accessories30,552 31,495 
Metal Solutions6,825 51,835 
Total reportable segment adjusted EBITDA32,313 125,697 
Corporate and Other(40,665)(40,793)
Depreciation and amortization(102,868)(103,751)
Interest expense(125,929)(117,681)
Foreign exchange loss(1,061)(313)
Other income, net5,900 427 
Loss before income taxes$(232,310)$(136,414)
The following table sets forth net sales to third party customers, disaggregated by reportable segment:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Windows & Doors – Principally vinyl windows$548,262 $557,610 
Siding & Accessories:
Vinyl siding111,425 108,710 
Metal siding80,198 71,969 
Injection molded siding9,746 9,791 
Stone22,548 27,726 
Other products & services
22,688 21,460 
Total246,605 239,656 
Metal Solutions – Metal building products414,480 378,068 
Total net sales$1,209,347 $1,175,334 
The following table sets forth other financial data by reportable segment:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Depreciation and amortization:
Windows & Doors$48,699 $43,959 
Siding & Accessories26,359 23,920 
Metal Solutions26,335 34,684 
Depreciation and amortization for reportable segments101,393 102,563 
Corporate1,475 1,188 
Total depreciation and amortization$102,868 $103,751 
Capital expenditures:
Windows & Doors$14,169 $17,039 
Siding & Accessories6,865 5,510 
Metal Solutions4,236 8,729 
Capital expenditures for reportable segments25,270 31,278 
Corporate109 5,810 
Total capital expenditures$25,379 $37,088 
The following table sets forth key expenses disaggregated by reportable segment for the three months ended April 4, 2026:
(Amounts in thousands)Windows & DoorsSiding & AccessoriesMetal SolutionsTotal
Net sales$548,262 $246,605 $414,480 $1,209,347 
Intersegment net sales1,516 883 — 2,399 
Reportable segment net sales549,778 247,488 414,480 1,211,746 
Segment cost of sales(1)
(486,167)(187,391)(327,244)(1,000,802)
Segment selling, general and administrative expenses(2)
(68,675)(29,545)(80,411)(178,631)
Reportable segment adjusted EBITDA$(5,064)$30,552 $6,825 $32,313 
Depreciation and amortization(102,868)
Corporate and Other(40,665)
Interest expense(125,929)
Foreign exchange loss
(1,061)
Other income, net5,900 
Loss before income taxes$(232,310)
(1)Includes hourly and salaried labor for all manufacturing, delivery and related support activities as well as factory overhead, labor benefits, warranty, out-bound freight, utilities, lease and other manufacturing and delivery related-costs.
(2)Includes labor-related costs for the sales, marketing and functional organizations, as well as marketing, selling expenses, bad debt and general administrative expenses. Functional organizations include, among others, information technology, finance and accounting, legal and executive office.
The following table sets forth key expenses disaggregated by reportable segment for the three months ended March 29, 2025:
(Amounts in thousands)Windows & DoorsSiding & AccessoriesMetal SolutionsTotal
Net sales$557,610 $239,656 $378,068 $1,175,334 
Intersegment net sales136 1,023 — 1,159 
Reportable segment net sales557,746 240,679 378,068 1,176,493 
Segment cost of sales(1)
(452,648)(182,063)(262,859)(897,570)
Segment selling, general and administrative expenses(2)
(62,731)(27,121)(63,374)(153,226)
Reportable segment adjusted EBITDA$42,367 $31,495 $51,835 $125,697 
Depreciation and amortization(103,751)
Corporate and Other(40,793)
Interest expense(117,681)
Foreign exchange loss
(313)
Other income, net427 
Loss before income taxes$(136,414)
(1)Includes hourly and salaried labor for all manufacturing, delivery and related support activities as well as factory overhead, labor benefits, warranty, out-bound freight, utilities, lease and other manufacturing and delivery related-costs.
(2)Includes labor-related costs for the sales, marketing and functional organizations as well as marketing, selling expenses, bad debt and general administrative expenses. Functional organizations include, among others, information technology, finance and accounting, legal and executive office.
The following table sets forth property, plant and equipment, net, and total assets disaggregated by reportable segment:
(in thousands)April 4, 2026December 31, 2025
Property, plant and equipment, net:
Windows & Doors$351,752 $353,253 
Siding & Accessories183,198 186,335 
Metal Solutions481,523 498,181 
Property, plant and equipment, net by reportable segments1,016,473 1,037,769 
Corporate13,445 20,840 
Total property, plant and equipment, net$1,029,918 $1,058,609 
Total assets:
Windows & Doors$2,360,052 $2,437,569 
Siding & Accessories1,766,231 1,687,914 
Metal Solutions1,819,217 1,838,466 
Total assets by reportable segment5,945,500 5,963,949 
Corporate208,726 244,787 
Total assets$6,154,226 $6,208,736 
v3.26.1
Insider Trading Arrangements
3 Months Ended
Apr. 04, 2026
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.26.1
Significant Accounting Policies (Policies)
3 Months Ended
Apr. 04, 2026
Accounting Policies [Abstract]  
Basis of Presentation
Basis of Presentation
The accompanying Condensed Consolidated Financial Statements are presented in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). These Condensed Consolidated Financial Statements have been prepared in accordance with the Company's accounting policies and on the same basis as those financial statements included in the Company’s latest Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Form 10-K”), and should be read in conjunction with those Consolidated Financial Statements and the Notes thereto. Certain disclosures normally included in the Company’s Consolidated Financial Statements prepared in accordance with U.S. GAAP have been omitted on a basis consistent with the rules and regulations of the SEC. Certain items have been reclassified in the prior year disclosures to conform to the current year presentation.
The accompanying Condensed Consolidated Financial Statements include the accounts and operations of the Company and its majority-owned subsidiaries and all adjustments (consisting of normal recurring adjustments) that the Company considered necessary to present a fair statement of its results of operations, financial position and cash flows. All significant intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates
Use of Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, net sales and expenses and related disclosures of contingent assets and liabilities in the Condensed Consolidated Financial Statements and accompanying notes. These estimates include, but are not limited to: establishing the allowance for expected credit losses; the allowance for slow moving and obsolete inventory; the valuation of goodwill; establishing useful lives for and evaluating the recovery of our finite-life, long-lived assets; recognizing the fair value of assets acquired and liabilities assumed in business combinations; determining the fair value of contingent consideration; accounting for rebates and product warranties; the valuation and expensing for share-based compensation; certain assumptions made in accounting for pension benefits; accounting for contingencies and uncertainties; and accounting for income taxes. Actual results may differ from the estimates used in preparing the Condensed Consolidated Financial Statements.
Cash and Cash Equivalents
Cash and Cash Equivalents
Cash and cash equivalents mainly consist of highly liquid, unrestricted savings, checking and other bank accounts.
Accounts Receivable, Net
Accounts Receivable, Net
The Company reports accounts receivable net of an allowance for expected credit losses. The Company establishes provisions for expected credit losses based on the Company’s assessment of the collectability of amounts owed to the Company by its customers. Such allowances are included in Selling, general and administrative expenses in the Company’s Condensed Consolidated Statements of Loss. In establishing the allowance, the Company considers changes in the financial position of a customer, age of the accounts receivable balances, availability of security, unusual macroeconomic conditions, lien rights and bond rights as well as disputes, if any, with its customers. Uncollectible accounts are written off when a settlement is reached for an amount that is less than the outstanding historical balance, all collection efforts have been exhausted, or any legal action taken by the Company has concluded.
Assets Held for Sale
Assets Held for Sale
The Company records assets held for sale at the lower of the carrying value or fair value less costs to sell. The following criteria are used to determine if property is held for sale: (i) management has the authority and commits to a plan to sell the property; (ii) the property is available for immediate sale in its present condition; (iii) there is an active program to locate a buyer and the plan to sell the property has been initiated; (iv) the sale of the property is probable within one year; (v) the property is being actively marketed at a reasonable sale price relative to its current fair value; and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made. In determining the fair value of the assets less costs to sell, the Company considers factors including current sales prices for comparable assets in the area, recent market analysis studies, appraisals and any recent legitimate offers. If the estimated fair value less costs to sell of an asset is less than its current carrying value, the asset is written down to its estimated fair value less costs to sell.
Equity Method Investments
Equity Method Investments
The Company accounts for investments in companies over which it has the ability to exercise significant influence, but not control, using the equity method of accounting. Under the equity method, the Company’s investments are carried at cost and adjusted for the Company’s proportionate share of net income or loss and dividends received. The Company acquired an investment as part of the acquisition of Mueller Supply Company that it accounts for under the equity method of accounting, as the Company possesses the ability to exercise significant influence, but not control, over the operating and financial policies of the investment.
Recent Accounting Pronouncements
Recent Accounting Pronouncements
In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets (“ASU 2025-05”). ASU 2025-05 provides entities with a practical expedient to simplify the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under ASC 606, Revenue From Contracts With Customers. Under this practical expedient, an entity is allowed to assume that the current conditions it has applied in determining credit loss allowances for current accounts receivable and current contract assets remain unchanged for the remaining life of those assets. The Company adopted ASU 2025-05 effective January 1, 2026 on a prospective basis and elected to apply the practical expedient. This adoption did not have a material impact on the Company’s consolidated financial statements and disclosures.
In November 2024, the FASB issued ASU No. 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”), which improves disclosure requirements and provides more detailed information about an entity’s expenses, specifically amounts related to purchases of inventory, employee compensation, depreciation, intangible asset amortization and selling expenses, along with qualitative descriptions of certain other types of expenses. This change is effective for annual periods beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact of ASU 2024-03 on its consolidated financial statements and disclosures.
In September 2025, the FASB issued ASU No. 2025-06, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software (“ASU 2025-06”). ASU 2025-06 modernizes and clarifies the threshold for when an entity is required to start capitalizing software costs and is based on when (i) management has authorized and committed to funding the software project and (ii) it is probable that the project will be completed and the software will be used to perform the function intended. This change is effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods, with early adoption permitted. Entities can elect to apply this guidance prospectively, retrospectively, or using a modified transition approach. The Company is currently evaluating the impact of ASU 2025-06 on its consolidated financial statements and disclosures.
In November 2025, the FASB issued ASU No. 2025-09, Derivatives and Hedging (Topic 815): Hedge Accounting Improvements (“ASU 2025-09”). ASU 2025-09 refines and clarifies existing hedge accounting guidance subject to ASC 815 to align financial reporting more closely with an entity’s risk management activities and to address diversity in practice identified by stakeholders. This change is effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual reporting periods, with early adoption permitted. Entities are to apply this guidance prospectively. The Company is currently evaluating the impact of ASU 2025-09 on its consolidated financial statements and disclosures.
In December 2025, the FASB issued ASU No. 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements (“ASU 2025-11”). ASU 2025-11 is intended to improve the navigability of the guidance in ASC 270, Interim Reporting, and clarify when it applies. Under the amendments, an entity is subject to ASC 270 if it provides interim financial statements and notes in accordance with GAAP. ASU 2025-11 also addresses the form and content of such financial statements, interim disclosure requirements, and establishes a principle under which an entity must disclose events since the end of the last annual reporting period that have a material impact on the entity. This change is effective for interim reporting periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. Entities can elect to apply this guidance prospectively or retrospectively. The Company is currently evaluating the impact of ASU 2025-11 on its consolidated financial statements and disclosures.
Fair Value Measurements
The Company measures certain financial assets and liabilities at fair value on a recurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses a three-level hierarchy for fair value measurements based on the observability of inputs to the valuation of an asset or liability as of the measurement date. The three levels of the fair value hierarchy are as follows:
Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities.
Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.
Level 3 – Unobservable inputs for the asset or liability, reflecting the Company’s own assumptions about the assumptions that market participants would use in pricing the asset or liability.
v3.26.1
Acquisitions (Tables)
3 Months Ended
Apr. 04, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]  
Schedule of the Fair Value of Net Assets Acquired
The following table summarizes the provisional fair value of net assets acquired and liabilities assumed:
(Amounts in thousands)Fair Value
Assets acquired and liabilities assumed:
Cash and cash equivalents$1,499 
Accounts receivable41,720 
Inventories76,339 
Property, plant and equipment152,055 
Trade name and customer relationship intangibles11,000 
Lease right-of-use asset8,911 
Other assets2,164 
Total assets acquired293,688 
Accounts payable and other liabilities assumed21,843 
Employee related liabilities5,360 
Lease liabilities8,798 
Rebates and customer related liabilities7,404 
Deferred income tax liabilities16,802 
Other liabilities assumed7,601 
Total liabilities assumed67,808 
Net assets acquired225,880 
Net purchase price
(174,719)
Bargain purchase gain$51,161 
Schedule of Fair Value and Expected Useful Life of Identifiable Intangible Assets
The fair value and expected useful life of identifiable intangible assets consists of the following:
($ Amounts in thousands)Fair ValueUseful Life in Years
Customer relationships$8,000 15
Trade names and other3,000 5
Total$11,000 
v3.26.1
Inventories, net (Tables)
3 Months Ended
Apr. 04, 2026
Inventory Disclosure [Abstract]  
Schedule of Inventory Components
The following table sets forth the components of inventories:
(Amounts in thousands)April 4,
2026
December 31
2025
Raw materials and work in process(1)
$524,613 $512,391 
Finished goods281,039 233,085 
Total inventories, net
$805,652 $745,476 
(1)    The Company's work in process inventory is not significant to our Consolidated Balance Sheet due to the nature of our production processes.
v3.26.1
Goodwill and Intangible Assets (Tables)
3 Months Ended
Apr. 04, 2026
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Allocation of Goodwill by the Reportable Segments
The following table sets forth the changes in the carrying amount of goodwill by reportable segment and the accumulated impact of impairment loss:
(Amounts in thousands)Windows & DoorsSiding & AccessoriesMetal SolutionsTotal
Balance, as of December 31, 2025$82,559 $338,643 $318,206 $739,408 
Impact of acquisitions and related measurement period adjustments (1)
— — (393)(393)
Currency translation(261)(995)— (1,256)
Balance, April 4, 2026$82,298 $337,648 $317,813 $737,759 
Goodwill
$950,770 $707,551 $317,813 $1,976,134 
Accumulated impairment loss
(868,472)(369,903)— (1,238,375)
Balance, April 4, 2026$82,298 $337,648 $317,813 $737,759 
1.A measurement period adjustment was recorded in conjunction with the Cold Rolled Steel acquisition during the first quarter. See Note 3 — Acquisitions for additional information.
Schedule of Components of Intangible Assets
The following table sets forth the major components of intangible assets:
($ Amounts in thousands)
Range of Life
(in Years)
Weighted Average Amortization Remaining
 (Years)
Carrying ValueAccumulated AmortizationNet Carrying Value
As of April 4, 2026 (1)
Customer lists and relationships31914$2,112,685 $(525,983)$1,586,702 
Trademarks, trade names and other51511745,072 (166,613)578,459 
Total intangible assets$2,857,757 $(692,596)$2,165,161 
($ Amounts in thousands)
Range of Life
(in Years)
Weighted Average Amortization Remaining
 (Years)
Carrying ValueAccumulated AmortizationNet Carrying Value
As of December 31, 2025 (1)
Customer lists and relationships31915$2,114,525 $(496,927)$1,617,598 
Trademarks, trade names and other51511745,999 (153,779)592,220 
Total intangible assets$2,860,524 $(650,706)$2,209,818 

(1) Net of accumulated impairment loss of $32.7 million as of April 4, 2026 and December 31, 2025.
Schedule of Amortization Expense Related to Intangible Assets The following table sets forth the amortization expense related to intangible assets:
Three Months Ended
April 4, 2026March 29, 2025
Amortization expense$42,845 $53,274 
v3.26.1
Product Warranties (Tables)
3 Months Ended
Apr. 04, 2026
Product Warranties Disclosures [Abstract]  
Schedule of Changes in Carrying Amount of Product Warranties Liability
The following table sets forth the changes in the carrying amount of product warranties liability:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Balance, beginning of period$188,754 $188,296 
Expense3,980 3,242 
Claims and settlements(4,590)(3,645)
Impact of acquisitions— — 
Balance, end of period$188,144 $187,893 
Reflected as:
Current liabilities – Rebates, warranties and other customer-related liabilities$23,885 $23,744 
Noncurrent liabilities – Other long-term liabilities164,259 164,149 
Total product warranty liability$188,144 $187,893 
v3.26.1
Debt (Tables)
3 Months Ended
Apr. 04, 2026
Debt Disclosure [Abstract]  
Schedule of Components of Long-Term Debt
The following table sets forth the components of long-term debt:
April 4, 2026December 31, 2025
($ Amounts in thousands)
Effective Interest RatePrincipal Outstanding
Unamortized Fair Value Adjustment (1)
Unamortized Discount and
Issuance Costs
Carrying AmountPrincipal Outstanding
Unamortized Fair Value Adjustment(1)
Unamortized Discount and
Issuance Costs
Carrying Amount
Term loan facility, due April 20288.57 %$2,470,000 $(150,231)$— $2,319,769 $2,476,500 $(166,962)$— $2,309,538 
Term loan facility, due August 20289.69 %290,250 — (10,234)280,016 291,000 — (11,201)279,799 
Term loan facility, due May 203110.05 %492,500 — (4,297)488,203 493,750 — (4,460)489,290 
6.125% Senior Notes, due January 2029
13.51 %318,699 (54,927)— 263,772 318,699 (58,909)— 259,790 
8.750% Senior Secured Notes, due August 2028
10.61 %710,000 — (23,864)686,136 710,000 — (26,465)683,535 
9.500% Senior Secured Notes, due August 2029
9.88 %500,000 — (5,239)494,761 500,000 — (5,565)494,435 
Total long-term debt$4,781,449 $(205,158)$(43,634)$4,532,657 $4,789,949 $(225,871)$(47,691)$4,516,387 
Reflected as:
Current liabilities - Current portion of long-term debt$34,000 $34,000 
Non-current liabilities - Long-term debt4,498,657 4,482,387 
Total long-term debt$4,532,657 $4,516,387 
Fair value - Senior notes - Level 1 $776,084 $1,084,438 
Fair value - Term loans - Level 21,788,076 2,536,083 
Total fair value$2,564,160 $3,620,521 
(1)    As a result of pushdown accounting in connection with the merger in July 2022, pursuant to which Cornerstone Building Brands became a privately-held company (the “Merger”), the carrying values of the term loan facility due April 2028 and the 6.125% senior notes were adjusted to fair value.
Schedule of Availability Under Credit Facilities
The following table sets forth the Company’s availability under its revolving credit facilities:
April 4, 2026December 31, 2025
(Amounts in thousands)AuthorizedBorrowingsLetters of Credit and Priority PayablesAuthorizedBorrowingsLetters of Credit and Priority Payables
Asset-based lending facility, due May 2029(1)
$850,000 $505,000 $67,770 $850,000 $390,000 $67,450 
Cash flow revolver(2)
92,000 25,000 — 92,000 — — 
First-in-last-out tranche asset-based lending facility, due May 2029(1)
95,000 95,000 — 95,000 95,000 — 
Total$1,037,000 $625,000 $67,770 $1,037,000 $485,000 $67,450 
(1)    The borrowing base under the Company’s asset-based lending facility (the “ABL Facility”) and the first-in-last out tranche asset-based lending facility (collectively, the "ABL Facilities”) is determined by a monthly borrowing base collateral calculation that is based on specified percentages of the previous month’s value of eligible inventory and accounts receivable, less certain allowances and subject to certain other adjustments.
(2)    Cash flow revolver commitment of $92.0 million will mature in May 2029.
Schedule of Interest Rate Swap Agreement The following table sets forth the terms of the Company’s interest rate swap agreements:
($ Amounts in thousands)
Notional amount$1,500,000
Forecasted term loan interest payments being hedged1-month SOFR
Fixed rate paid2.0038%
Origination dateApril 17, 2023
Maturity dateApril 15, 2026
Fair value at April 4, 2026 - Other assets, net
$970
Fair value at December 31, 2025 - Other assets, net$7,069
Level in fair value hierarchy(1)
Level 2
(1)Interest rate swaps are based on cash flow hedge contracts that have fixed rate structures and are measured against market based Secured Overnight Financing Rate (“SOFR”) yield curves. These interest rate swaps are classified within Level 2 of the fair value hierarchy because they are valued using alternative pricing sources or models that utilized market observable inputs, including current and forward interest rates.
v3.26.1
Accumulated Other Comprehensive Income (Loss) (Tables)
3 Months Ended
Apr. 04, 2026
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
The following tables set forth the change in accumulated other comprehensive income (loss) attributable to the Company by each component of accumulated other comprehensive income (loss), net of applicable income taxes:
(Amounts in thousands)Foreign Currency Translation AdjustmentDerivatives, Net of TaxPensions, Net of Tax
Total Accumulated Other Comprehensive Income (Loss)
Balance, December 31, 2025$(19,309)$542 $873 $(17,894)
Other comprehensive income (loss)(4,144)(1,979)— (6,123)
Balance, April 4, 2026$(23,453)$(1,437)$873 $(24,017)
Balance, December 31, 2024$(25,092)$16,448 $1,380 $(7,264)
Other comprehensive income (loss)1,708 (5,101)— (3,393)
Balance, March 29, 2025$(23,384)$11,347 $1,380 $(10,657)
v3.26.1
Income Taxes (Tables)
3 Months Ended
Apr. 04, 2026
Income Tax Disclosure [Abstract]  
Schedule of Effective Tax Rate
The following table sets forth the effective tax rate for the three months ended April 4, 2026 and March 29, 2025:
Three Months Ended
April 4, 2026March 29, 2025
Effective tax rate17.1 %18.9 %
v3.26.1
Fair Value of Financial Instruments and Fair Value Measurements (Tables)
3 Months Ended
Apr. 04, 2026
Fair Value Disclosures [Abstract]  
Schedule of Financial Assets and Liabilities Measured on a Recurring Basis
The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of April 4, 2026:
(Amounts in thousands)Level 1Level 2Level 3Total
Assets – Derivative instruments$— $970 $— $970 
The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2025:
(Amounts in thousands)Level 1Level 2Level 3Total
Assets – Derivative instruments$— $7,069 $— $7,069 
Liabilities – Contingent consideration
$— $— $9,954 $9,954 
v3.26.1
Reportable Segment and Geographical Information (Tables)
3 Months Ended
Apr. 04, 2026
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
The following table sets forth reportable segment net sales, reportable segment adjusted EBITDA and a reconciliation to loss before income taxes:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Reportable segment net sales: 
Windows & Doors$549,778 $557,746 
Siding & Accessories247,488 240,679 
Metal Solutions414,480 378,068 
Total reportable segment net sales1,211,746 1,176,493 
Intersegment sales(2,399)(1,159)
Total net sales$1,209,347 $1,175,334 
Reportable segment adjusted EBITDA:
Windows & Doors$(5,064)$42,367 
Siding & Accessories30,552 31,495 
Metal Solutions6,825 51,835 
Total reportable segment adjusted EBITDA32,313 125,697 
Corporate and Other(40,665)(40,793)
Depreciation and amortization(102,868)(103,751)
Interest expense(125,929)(117,681)
Foreign exchange loss(1,061)(313)
Other income, net5,900 427 
Loss before income taxes$(232,310)$(136,414)
The following table sets forth other financial data by reportable segment:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Depreciation and amortization:
Windows & Doors$48,699 $43,959 
Siding & Accessories26,359 23,920 
Metal Solutions26,335 34,684 
Depreciation and amortization for reportable segments101,393 102,563 
Corporate1,475 1,188 
Total depreciation and amortization$102,868 $103,751 
Capital expenditures:
Windows & Doors$14,169 $17,039 
Siding & Accessories6,865 5,510 
Metal Solutions4,236 8,729 
Capital expenditures for reportable segments25,270 31,278 
Corporate109 5,810 
Total capital expenditures$25,379 $37,088 
The following table sets forth property, plant and equipment, net, and total assets disaggregated by reportable segment:
(in thousands)April 4, 2026December 31, 2025
Property, plant and equipment, net:
Windows & Doors$351,752 $353,253 
Siding & Accessories183,198 186,335 
Metal Solutions481,523 498,181 
Property, plant and equipment, net by reportable segments1,016,473 1,037,769 
Corporate13,445 20,840 
Total property, plant and equipment, net$1,029,918 $1,058,609 
Total assets:
Windows & Doors$2,360,052 $2,437,569 
Siding & Accessories1,766,231 1,687,914 
Metal Solutions1,819,217 1,838,466 
Total assets by reportable segment5,945,500 5,963,949 
Corporate208,726 244,787 
Total assets$6,154,226 $6,208,736 
Schedule of Disaggregation of Revenue
The following table sets forth net sales to third party customers, disaggregated by reportable segment:
Three Months Ended
(Amounts in thousands)April 4, 2026March 29, 2025
Windows & Doors – Principally vinyl windows$548,262 $557,610 
Siding & Accessories:
Vinyl siding111,425 108,710 
Metal siding80,198 71,969 
Injection molded siding9,746 9,791 
Stone22,548 27,726 
Other products & services
22,688 21,460 
Total246,605 239,656 
Metal Solutions – Metal building products414,480 378,068 
Total net sales$1,209,347 $1,175,334 
Schedule of Disaggregated Expenses by Reportable Segment
The following table sets forth key expenses disaggregated by reportable segment for the three months ended April 4, 2026:
(Amounts in thousands)Windows & DoorsSiding & AccessoriesMetal SolutionsTotal
Net sales$548,262 $246,605 $414,480 $1,209,347 
Intersegment net sales1,516 883 — 2,399 
Reportable segment net sales549,778 247,488 414,480 1,211,746 
Segment cost of sales(1)
(486,167)(187,391)(327,244)(1,000,802)
Segment selling, general and administrative expenses(2)
(68,675)(29,545)(80,411)(178,631)
Reportable segment adjusted EBITDA$(5,064)$30,552 $6,825 $32,313 
Depreciation and amortization(102,868)
Corporate and Other(40,665)
Interest expense(125,929)
Foreign exchange loss
(1,061)
Other income, net5,900 
Loss before income taxes$(232,310)
(1)Includes hourly and salaried labor for all manufacturing, delivery and related support activities as well as factory overhead, labor benefits, warranty, out-bound freight, utilities, lease and other manufacturing and delivery related-costs.
(2)Includes labor-related costs for the sales, marketing and functional organizations, as well as marketing, selling expenses, bad debt and general administrative expenses. Functional organizations include, among others, information technology, finance and accounting, legal and executive office.
The following table sets forth key expenses disaggregated by reportable segment for the three months ended March 29, 2025:
(Amounts in thousands)Windows & DoorsSiding & AccessoriesMetal SolutionsTotal
Net sales$557,610 $239,656 $378,068 $1,175,334 
Intersegment net sales136 1,023 — 1,159 
Reportable segment net sales557,746 240,679 378,068 1,176,493 
Segment cost of sales(1)
(452,648)(182,063)(262,859)(897,570)
Segment selling, general and administrative expenses(2)
(62,731)(27,121)(63,374)(153,226)
Reportable segment adjusted EBITDA$42,367 $31,495 $51,835 $125,697 
Depreciation and amortization(103,751)
Corporate and Other(40,793)
Interest expense(117,681)
Foreign exchange loss
(313)
Other income, net427 
Loss before income taxes$(136,414)
(1)Includes hourly and salaried labor for all manufacturing, delivery and related support activities as well as factory overhead, labor benefits, warranty, out-bound freight, utilities, lease and other manufacturing and delivery related-costs.
(2)Includes labor-related costs for the sales, marketing and functional organizations as well as marketing, selling expenses, bad debt and general administrative expenses. Functional organizations include, among others, information technology, finance and accounting, legal and executive office.
v3.26.1
Basis of Presentation (Details)
3 Months Ended
Apr. 04, 2026
segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Number of reportable segments 3
v3.26.1
Significant Accounting Policies (Details) - USD ($)
$ in Thousands
Apr. 04, 2026
Dec. 31, 2025
Business Combination [Line Items]    
Allowance for credit loss $ 22,600 $ 20,800
Assets held for sale 147,011 147,011
Mueller Supply Company, Inc.    
Business Combination [Line Items]    
Equity investment $ 10,600 $ 11,000
v3.26.1
Acquisitions - Narrative (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Sep. 30, 2025
USD ($)
employee
manufacturing_site
Jul. 31, 2025
USD ($)
Aug. 31, 2023
USD ($)
period
Apr. 04, 2026
USD ($)
Mar. 29, 2025
USD ($)
Dec. 31, 2025
USD ($)
Business Combination [Line Items]            
Bargain purchase gain       $ 5,342,000 $ 0  
Reduction in goodwill       393,000    
Contingent consideration liability           $ 9,954,000
Payment of contingent consideration       5,343,000 0  
Increase (decrease) change in fair value of contingent consideration       126,000 $ 814,000  
Metal Sales Manufacturing Corporation            
Business Combination [Line Items]            
Preliminary purchase price $ 181,800,000          
Cash payment for acquisition $ 200,000,000.0          
Reduction in purchase price       7,100,000    
Net purchase price       174,719,000    
Bargain purchase gain       51,161,000   45,800,000
Increase in deferred income tax liabilities       1,800,000    
Additional bargain purchase gain recognized       5,300,000    
Metal Sales Manufacturing Corporation | Metal Sales Manufacturing Corporation            
Business Combination [Line Items]            
Number of employees | employee 900          
Number of manufacturing facilities | manufacturing_site 21          
Cold Rolled Steel, LLC            
Business Combination [Line Items]            
Cash payment for acquisition   $ 6,500,000        
Net purchase price   $ 6,400,000   6,000,000.0    
Reduction in goodwill       400,000    
M.A.C. Métal            
Business Combination [Line Items]            
Contingent consideration liability     $ 16,800,000 0   10,000,000.0
Number of consecutive periods | period     2      
Period of contingent consideration payable     12 months      
Payment of contingent consideration       10,100,000   $ 11,500,000
Increase (decrease) change in fair value of contingent consideration       $ 100,000    
v3.26.1
Acquisitions - Schedule of the Fair Value of Net Assets Acquired (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Dec. 31, 2025
Sep. 30, 2025
Business Combination, Recognized Liability Assumed, Liability [Abstract]        
Bargain purchase gain $ 5,342 $ 0    
Metal Sales Manufacturing Corporation        
Business Combination, Recognized Asset Acquired, Asset [Abstract]        
Cash and cash equivalents 1,499      
Accounts receivable 41,720      
Inventories 76,339      
Property, plant and equipment 152,055      
Trade name and customer relationship intangibles 11,000     $ 11,000
Lease right-of-use assets 8,911      
Other assets 2,164      
Total assets acquired 293,688      
Business Combination, Recognized Liability Assumed, Liability [Abstract]        
Accounts payable and other liabilities assumed 21,843      
Employee related liabilities 5,360      
Lease liabilities 8,798      
Rebates and customer related liabilities 7,404      
Deferred income tax liabilities 16,802      
Other liabilities assumed 7,601      
Total liabilities assumed 67,808      
Net assets acquired 225,880      
Net purchase price (174,719)      
Bargain purchase gain $ 51,161   $ 45,800  
v3.26.1
Acquisitions - Schedule of Provisional Fair Value and Weighted Average Estimated Useful Life of Identifiable Intangible Assets (Details) - Metal Sales Manufacturing Corporation - USD ($)
$ in Thousands
1 Months Ended
Sep. 30, 2025
Apr. 04, 2026
Business Combination [Line Items]    
Fair Value $ 11,000 $ 11,000
Customer relationships    
Business Combination [Line Items]    
Fair Value $ 8,000  
Useful Life in Years 15 years  
Trade names and other    
Business Combination [Line Items]    
Fair Value $ 3,000  
Useful Life in Years 5 years  
v3.26.1
Inventories, net (Details) - USD ($)
$ in Thousands
Apr. 04, 2026
Dec. 31, 2025
Inventory Disclosure [Abstract]    
Raw materials and work in process $ 524,613 $ 512,391
Finished goods 281,039 233,085
Total inventories, net $ 805,652 $ 745,476
v3.26.1
Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details)
$ in Thousands
3 Months Ended
Apr. 04, 2026
USD ($)
Goodwill [Roll Forward]  
Beginning balance $ 739,408
Impact of acquisitions and related measurement period adjustments (393)
Currency translation (1,256)
Ending balance 737,759
Goodwill 1,976,134
Accumulated impairment loss (1,238,375)
Goodwill 737,759
Windows & Doors  
Goodwill [Roll Forward]  
Beginning balance 82,559
Impact of acquisitions and related measurement period adjustments 0
Currency translation (261)
Ending balance 82,298
Goodwill 950,770
Accumulated impairment loss (868,472)
Goodwill 82,298
Siding & Accessories  
Goodwill [Roll Forward]  
Beginning balance 338,643
Impact of acquisitions and related measurement period adjustments 0
Currency translation (995)
Ending balance 337,648
Goodwill 707,551
Accumulated impairment loss (369,903)
Goodwill 337,648
Metal Solutions  
Goodwill [Roll Forward]  
Beginning balance 318,206
Impact of acquisitions and related measurement period adjustments (393)
Currency translation 0
Ending balance 317,813
Goodwill 317,813
Accumulated impairment loss 0
Goodwill $ 317,813
v3.26.1
Goodwill and Intangible Assets - Intangible Asset Activity (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Apr. 04, 2026
Dec. 31, 2025
Goodwill [Line Items]    
Carrying Value $ 2,857,757 $ 2,860,524
Accumulated Amortization (692,596) (650,706)
Net Carrying Value 2,165,161 2,209,818
Net of accumulated impairment loss 32,700 32,700
Customer relationships    
Goodwill [Line Items]    
Carrying Value 2,112,685 2,114,525
Accumulated Amortization (525,983) (496,927)
Net Carrying Value 1,586,702 1,617,598
Trademarks, trade names and other    
Goodwill [Line Items]    
Carrying Value 745,072 745,999
Accumulated Amortization (166,613) (153,779)
Net Carrying Value $ 578,459 $ 592,220
Minimum | Customer relationships    
Goodwill [Line Items]    
Range of Life (Years)/Weighted Average Amortization Remaining (Years) 3 years 3 years
Minimum | Trademarks, trade names and other    
Goodwill [Line Items]    
Range of Life (Years)/Weighted Average Amortization Remaining (Years) 5 years 5 years
Maximum | Customer relationships    
Goodwill [Line Items]    
Range of Life (Years)/Weighted Average Amortization Remaining (Years) 19 years 19 years
Maximum | Trademarks, trade names and other    
Goodwill [Line Items]    
Range of Life (Years)/Weighted Average Amortization Remaining (Years) 15 years 15 years
Weighted Average | Customer relationships    
Goodwill [Line Items]    
Range of Life (Years)/Weighted Average Amortization Remaining (Years) 14 years 15 years
Weighted Average | Trademarks, trade names and other    
Goodwill [Line Items]    
Range of Life (Years)/Weighted Average Amortization Remaining (Years) 11 years 11 years
v3.26.1
Goodwill and Intangible Assets - Schedule of Amortization Expense Related to Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Goodwill and Intangible Assets Disclosure [Abstract]    
Amortization expense $ 42,845 $ 53,274
v3.26.1
Product Warranties (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Dec. 31, 2025
Movement in Standard Product Warranty Accrual [Roll Forward]      
Balance, beginning of period $ 188,754 $ 188,296 $ 188,296
Expense 3,980 3,242  
Claims and settlements (4,590) (3,645)  
Impact of acquisitions 0 0  
Balance, end of period 188,144 187,893 188,754
Current liabilities – Rebates, warranties and other customer-related liabilities 23,885 23,744  
Noncurrent liabilities – Other long-term liabilities 164,259 164,149  
Total product warranty liability 188,144 $ 187,893 188,754
Other Current Liabilities      
Movement in Standard Product Warranty Accrual [Roll Forward]      
Deferred warranty revenue 3,100   2,800
Other Noncurrent Liabilities      
Movement in Standard Product Warranty Accrual [Roll Forward]      
Deferred warranty revenue $ 23,800   $ 24,100
v3.26.1
Debt - Schedule of Debt (Details) - USD ($)
$ in Thousands
Apr. 04, 2026
Dec. 31, 2025
Jul. 31, 2022
Debt Instrument [Line Items]      
Principal Outstanding $ 4,781,449 $ 4,789,949  
Unamortized Fair Value Adjustment (205,158) (225,871)  
Unamortized Discount and Issuance Costs (43,634) (47,691)  
Carrying Amount 4,532,657 4,516,387  
Current liabilities - Current portion of long-term debt 34,000 34,000  
Non-current liabilities - Long-term debt 4,498,657 4,482,387  
Total fair value 2,564,160 3,620,521  
Senior Notes | Level 1      
Debt Instrument [Line Items]      
Total fair value 776,084 1,084,438  
Term Loans | Level 2      
Debt Instrument [Line Items]      
Total fair value $ 1,788,076 2,536,083  
Term loan facility, due April 2028      
Debt Instrument [Line Items]      
Effective Interest Rate 8.57%    
Principal Outstanding $ 2,470,000 2,476,500  
Unamortized Fair Value Adjustment (150,231) (166,962)  
Unamortized Discount and Issuance Costs 0 0  
Carrying Amount $ 2,319,769 2,309,538  
Term loan facility, due August 2028      
Debt Instrument [Line Items]      
Effective Interest Rate 9.69%    
Principal Outstanding $ 290,250 291,000  
Unamortized Fair Value Adjustment 0 0  
Unamortized Discount and Issuance Costs (10,234) (11,201)  
Carrying Amount $ 280,016 279,799  
Term loan facility, due May 2031      
Debt Instrument [Line Items]      
Effective Interest Rate 10.05%    
Principal Outstanding $ 492,500 493,750  
Unamortized Fair Value Adjustment 0 0  
Unamortized Discount and Issuance Costs (4,297) (4,460)  
Carrying Amount $ 488,203 $ 489,290  
6.125% senior notes, due January 2029      
Debt Instrument [Line Items]      
Debt instrument, interest rate, stated percentage 6.125% 6.125% 6.125%
Effective Interest Rate 13.51%    
Principal Outstanding $ 318,699 $ 318,699  
Unamortized Fair Value Adjustment (54,927) (58,909)  
Unamortized Discount and Issuance Costs 0 0  
Carrying Amount $ 263,772 $ 259,790  
8.750% senior secured notes, due August 2028      
Debt Instrument [Line Items]      
Debt instrument, interest rate, stated percentage 8.75% 8.75%  
Effective Interest Rate 10.61%    
Principal Outstanding $ 710,000 $ 710,000  
Unamortized Fair Value Adjustment 0 0  
Unamortized Discount and Issuance Costs (23,864) (26,465)  
Carrying Amount $ 686,136 $ 683,535  
9.500% senior secured notes, due August 2029      
Debt Instrument [Line Items]      
Debt instrument, interest rate, stated percentage 9.50% 9.50%  
Effective Interest Rate 9.88%    
Principal Outstanding $ 500,000 $ 500,000  
Unamortized Fair Value Adjustment 0 0  
Unamortized Discount and Issuance Costs (5,239) (5,565)  
Carrying Amount $ 494,761 $ 494,435  
v3.26.1
Debt - Revolving Credit Facilities (Details) - Line of Credit - USD ($)
$ in Thousands
Apr. 04, 2026
Dec. 31, 2025
Authorized    
Line of Credit Facility [Line Items]    
Authorized $ 1,037,000 $ 1,037,000
Authorized | Asset-based lending facility, due May 2029    
Line of Credit Facility [Line Items]    
Authorized 850,000 850,000
Authorized | Cash flow revolver    
Line of Credit Facility [Line Items]    
Authorized 92,000 92,000
Authorized | Revolver due May 2029    
Line of Credit Facility [Line Items]    
Authorized 92,000  
Authorized | First-in-last-out tranche asset-based lending facility, due May 2029    
Line of Credit Facility [Line Items]    
Authorized 95,000 95,000
Borrowings    
Line of Credit Facility [Line Items]    
Long-term line of credit 625,000 485,000
Borrowings | Asset-based lending facility, due May 2029    
Line of Credit Facility [Line Items]    
Long-term line of credit 505,000 390,000
Borrowings | Cash flow revolver    
Line of Credit Facility [Line Items]    
Long-term line of credit 25,000 0
Borrowings | First-in-last-out tranche asset-based lending facility, due May 2029    
Line of Credit Facility [Line Items]    
Long-term line of credit 95,000 95,000
Letters of Credit and Priority Payables    
Line of Credit Facility [Line Items]    
Long-term line of credit 67,770 67,450
Letters of Credit and Priority Payables | Asset-based lending facility, due May 2029    
Line of Credit Facility [Line Items]    
Long-term line of credit 67,770 67,450
Letters of Credit and Priority Payables | Cash flow revolver    
Line of Credit Facility [Line Items]    
Long-term line of credit 0 0
Letters of Credit and Priority Payables | First-in-last-out tranche asset-based lending facility, due May 2029    
Line of Credit Facility [Line Items]    
Long-term line of credit $ 0 $ 0
v3.26.1
Debt - Covenant Compliance (Details) - Line of Credit
3 Months Ended
Apr. 04, 2026
day
ABL Credit Agreement  
Debt Instrument [Line Items]  
Covenant, fixed charge coverage ratio, minimum 1.00
Covenant, specified availability (less than) 10.00%
Trading days 20
Cash flow revolver | Revolving Credit Facility  
Debt Instrument [Line Items]  
Covenant, secured leverage ratio, maximum 7.75
Covenant, secured leverage ratio, reimbursement percentage of authorized borrowings 35.00%
v3.26.1
Debt - Interest Rate Swaps (Details) - Interest rate swaps - USD ($)
Apr. 04, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Notional amount $ 1,500,000,000  
Fixed rate paid 2.0038%  
Other Assets    
Debt Instrument [Line Items]    
Fair value $ 970,000 $ 7,069,000
v3.26.1
Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ (505,097) $ 204,877
Other comprehensive income (loss) (6,123) (3,393)
Ending balance (707,888) 87,113
Total Accumulated Other Comprehensive Income (Loss)    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (17,894) (7,264)
Other comprehensive income (loss) (6,123) (3,393)
Ending balance (24,017) (10,657)
Foreign Currency Translation Adjustment    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (19,309) (25,092)
Other comprehensive income (loss) (4,144) 1,708
Ending balance (23,453) (23,384)
Derivatives, Net of Tax    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 542 16,448
Other comprehensive income (loss) (1,979) (5,101)
Ending balance (1,437) 11,347
Pensions, Net of Tax    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 873 1,380
Other comprehensive income (loss) 0 0
Ending balance $ 873 $ 1,380
v3.26.1
Share-Based Compensation (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Class B Incentive Unit    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period 5 years  
Granted during period (in shares) 0  
Allocated share-based compensation expense (gain) $ (4.5) $ (3.7)
Period for recognition (years) 3 years 7 months 6 days  
Unrecognized share-based compensation expense $ 18.0  
Restricted Class A-2 Units | Non-Employee Directors And Chief Executive Officer    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted during period (in shares) 0  
Allocated share-based compensation expense (gain) $ 0.4  
Period for recognition (years) 1 year 2 months 12 days  
Unrecognized share-based compensation expense $ 1.6  
Restricted Class A-2 Units | Non-Employee Directors    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period 1 year  
Restricted Class A-2 Units | Chief Executive Officer    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period 2 years  
v3.26.1
Income Taxes - Schedule of Effective Tax Rate (Details)
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Income Tax Disclosure [Abstract]    
Effective tax rate 17.10% 18.90%
v3.26.1
Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Valuation Allowance [Line Items]    
Estimated effective tax rate 22.80%  
Effective tax rate 17.10% 18.90%
Interest limitation carryforward not subject to expiration $ 795,300  
Income tax expense (39,784) $ (25,790)
Valuation allowance 25,300  
Interest Limitation Carryforward    
Valuation Allowance [Line Items]    
Valuation allowance recorded 53,900  
Income tax expense $ 12,000  
v3.26.1
Fair Value of Financial Instruments and Fair Value Measurements (Details) - USD ($)
$ in Thousands
Apr. 04, 2026
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets – Derivative instruments $ 970 $ 7,069
Liabilities – Contingent consideration   9,954
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets – Derivative instruments 0 0
Liabilities – Contingent consideration   0
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets – Derivative instruments 970 7,069
Liabilities – Contingent consideration   0
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets – Derivative instruments $ 0 0
Liabilities – Contingent consideration   $ 9,954
v3.26.1
Related Party Transactions (Details) - Related Party - USD ($)
$ in Millions
Apr. 04, 2026
Dec. 31, 2025
CD&R    
Related Party Transaction [Line Items]    
Accounts receivable $ 0.4 $ 0.4
Camelot Parent    
Related Party Transaction [Line Items]    
Accounts payable $ 6.5 $ 6.5
v3.26.1
Commitments and Contingencies (Details) - USD ($)
$ in Millions
Apr. 04, 2026
Dec. 31, 2025
Environmental Matters    
Loss Contingencies [Line Items]    
Liability accrual $ 4.0 $ 4.5
v3.26.1
Reportable Segment and Geographical Information - Narrative (Details)
3 Months Ended
Apr. 04, 2026
segment
Segment Reporting [Abstract]  
Number of operating segments 5
Number of reportable segments 3
v3.26.1
Reportable Segment and Geographical Information - Adjusted Segment EBITDA (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Segment Reporting Information [Line Items]    
Total net sales $ 1,209,347 $ 1,175,334
Total reportable segment adjusted EBITDA 32,313 125,697
Depreciation and amortization (102,868) (103,751)
Interest expense (125,929) (117,681)
Foreign exchange loss (1,061) (313)
Other income, net 5,900 427
Loss before income taxes (232,310) (136,414)
Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 246,605 239,656
Operating Segments    
Segment Reporting Information [Line Items]    
Total net sales 1,211,746 1,176,493
Total reportable segment adjusted EBITDA 32,313 125,697
Depreciation and amortization (101,393) (102,563)
Operating Segments | Windows & Doors    
Segment Reporting Information [Line Items]    
Total net sales 549,778 557,746
Total reportable segment adjusted EBITDA (5,064) 42,367
Depreciation and amortization (48,699) (43,959)
Operating Segments | Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 247,488 240,679
Total reportable segment adjusted EBITDA 30,552 31,495
Depreciation and amortization (26,359) (23,920)
Operating Segments | Metal Solutions    
Segment Reporting Information [Line Items]    
Total net sales 414,480 378,068
Total reportable segment adjusted EBITDA 6,825 51,835
Depreciation and amortization (26,335) (34,684)
Intersegment sales    
Segment Reporting Information [Line Items]    
Total net sales (2,399) (1,159)
Corporate and Other    
Segment Reporting Information [Line Items]    
Corporate and Other (40,665) (40,793)
Depreciation and amortization $ (1,475) $ (1,188)
v3.26.1
Reportable Segment and Geographical Information - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Segment Reporting Information [Line Items]    
Total net sales $ 1,209,347 $ 1,175,334
Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 246,605 239,656
Windows & Doors – Principally vinyl windows | Windows & Doors    
Segment Reporting Information [Line Items]    
Total net sales 548,262 557,610
Vinyl siding | Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 111,425 108,710
Metal siding | Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 80,198 71,969
Injection molded siding | Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 9,746 9,791
Stone | Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 22,548 27,726
Other products & services | Siding & Accessories    
Segment Reporting Information [Line Items]    
Total net sales 22,688 21,460
Metal building products | Metal Solutions    
Segment Reporting Information [Line Items]    
Total net sales $ 414,480 $ 378,068
v3.26.1
Reportable Segment and Geographical Information - Other Financial Data by Reportable Segment (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Segment Reporting Information [Line Items]    
Depreciation and amortization $ 102,868 $ 103,751
Capital expenditures 25,379 37,088
Operating Segments    
Segment Reporting Information [Line Items]    
Depreciation and amortization 101,393 102,563
Capital expenditures 25,270 31,278
Operating Segments | Windows & Doors    
Segment Reporting Information [Line Items]    
Depreciation and amortization 48,699 43,959
Capital expenditures 14,169 17,039
Operating Segments | Siding & Accessories    
Segment Reporting Information [Line Items]    
Depreciation and amortization 26,359 23,920
Capital expenditures 6,865 5,510
Operating Segments | Metal Solutions    
Segment Reporting Information [Line Items]    
Depreciation and amortization 26,335 34,684
Capital expenditures 4,236 8,729
Corporate    
Segment Reporting Information [Line Items]    
Depreciation and amortization 1,475 1,188
Capital expenditures $ 109 $ 5,810
v3.26.1
Reportable Segment and Geographical Information - Schedule of Disaggregated Expenses by Reportable Segment (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 04, 2026
Mar. 29, 2025
Segment Reporting Information [Line Items]    
Net sales $ 1,209,347 $ 1,175,334
Reportable segment adjusted EBITDA 32,313 125,697
Depreciation and amortization (102,868) (103,751)
Interest expense (125,929) (117,681)
Foreign exchange loss (1,061) (313)
Other income, net 5,900 427
Loss before income taxes (232,310) (136,414)
Windows & Doors    
Segment Reporting Information [Line Items]    
Net sales 548,262 557,610
Siding & Accessories    
Segment Reporting Information [Line Items]    
Net sales 246,605 239,656
Metal Solutions    
Segment Reporting Information [Line Items]    
Net sales 414,480 378,068
Intersegment sales    
Segment Reporting Information [Line Items]    
Net sales 2,399 1,159
Intersegment sales | Windows & Doors    
Segment Reporting Information [Line Items]    
Net sales 1,516 136
Intersegment sales | Siding & Accessories    
Segment Reporting Information [Line Items]    
Net sales 883 1,023
Intersegment sales | Metal Solutions    
Segment Reporting Information [Line Items]    
Net sales 0 0
Operating Segments    
Segment Reporting Information [Line Items]    
Net sales 1,211,746 1,176,493
Segment cost of sales (1,000,802) (897,570)
Segment selling, general and administrative expenses (178,631) (153,226)
Reportable segment adjusted EBITDA 32,313 125,697
Depreciation and amortization (101,393) (102,563)
Operating Segments | Windows & Doors    
Segment Reporting Information [Line Items]    
Net sales 549,778 557,746
Segment cost of sales (486,167) (452,648)
Segment selling, general and administrative expenses (68,675) (62,731)
Reportable segment adjusted EBITDA (5,064) 42,367
Depreciation and amortization (48,699) (43,959)
Operating Segments | Siding & Accessories    
Segment Reporting Information [Line Items]    
Net sales 247,488 240,679
Segment cost of sales (187,391) (182,063)
Segment selling, general and administrative expenses (29,545) (27,121)
Reportable segment adjusted EBITDA 30,552 31,495
Depreciation and amortization (26,359) (23,920)
Operating Segments | Metal Solutions    
Segment Reporting Information [Line Items]    
Net sales 414,480 378,068
Segment cost of sales (327,244) (262,859)
Segment selling, general and administrative expenses (80,411) (63,374)
Reportable segment adjusted EBITDA 6,825 51,835
Depreciation and amortization (26,335) (34,684)
Corporate    
Segment Reporting Information [Line Items]    
Depreciation and amortization (1,475) (1,188)
Corporate and Other $ (40,665) $ (40,793)
v3.26.1
Reportable Segment and Geographical Information - Total Assets Disaggregated by Reportable Segment (Details) - USD ($)
$ in Thousands
Apr. 04, 2026
Dec. 31, 2025
Segment Reporting Information [Line Items]    
Total property, plant and equipment, net $ 1,029,918 $ 1,058,609
Total assets 6,154,226 6,208,736
Operating Segments    
Segment Reporting Information [Line Items]    
Total property, plant and equipment, net 1,016,473 1,037,769
Total assets 5,945,500 5,963,949
Operating Segments | Windows & Doors    
Segment Reporting Information [Line Items]    
Total property, plant and equipment, net 351,752 353,253
Total assets 2,360,052 2,437,569
Operating Segments | Siding & Accessories    
Segment Reporting Information [Line Items]    
Total property, plant and equipment, net 183,198 186,335
Total assets 1,766,231 1,687,914
Operating Segments | Metal Solutions    
Segment Reporting Information [Line Items]    
Total property, plant and equipment, net 481,523 498,181
Total assets 1,819,217 1,838,466
Corporate    
Segment Reporting Information [Line Items]    
Total property, plant and equipment, net 13,445 20,840
Total assets $ 208,726 $ 244,787