Basis of Presentation and Principles of Consolidation	3 Months Ended
Mar. 29, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation Background MasterBrand, Inc. is the largest manufacturer of residential cabinets in North America with a portfolio of leading residential cabinetry products for the kitchen, bathroom and other parts of the home. References to “MasterBrand,” “the Company,” “we,” “our” and “us” refer to MasterBrand, Inc. and its consolidated subsidiaries, unless the context otherwise requires. Basis of Presentation Our consolidated financial statements are based on a 52- or 53-week fiscal year ending on the last Sunday in December in each calendar year. Our fiscal 2026 and 2025 consist of 52 weeks ending on December 27, 2026 and December 28, 2025, respectively. The condensed consolidated balance sheet as of March 29, 2026, as well as the related condensed consolidated statements of income, comprehensive income, cash flows and equity for the thirteen weeks ended March 29, 2026 and the thirteen weeks ended March 30, 2025 are unaudited. The presentation of these financial statements requires us to make estimates and assumptions that affect reported amounts and related disclosures. Actual results could differ from those estimates. In the opinion of management, all adjustments, consisting of normal, recurring accruals, considered necessary for a fair statement of the financial statements have been included. Interim results may not be indicative of results for a full year. The condensed consolidated financial statements and notes are presented pursuant to the rules and regulations of the Securities and Exchange Commission and do not contain certain information included in our audited consolidated financial statements and notes. The 2025 condensed consolidated balance sheet was derived from our audited consolidated financial statements, but does not include all disclosures required by United States Generally Accepted Accounting Principles (“GAAP”). These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 28, 2025. Tariffs On February 20, 2026, the Supreme Court of the United States (the “Supreme Court”) issued a decision in Learning Resources, Inc. v. Trump and Trump v. V.O.S. Selections, Inc., two appeals concerning tariffs President Trump imposed under the International Emergency Economic Powers Act (“IEEPA”). The Supreme Court held that the IEEPA does not give the President authority to impose tariffs. The Supreme Court thus affirmed a lower court decision that invalidated two sets of IEEPA tariffs: one set of tariffs on imports from Canada, Mexico, and the People's Republic of China based on declared emergencies concerning illicit drugs, and another set of tariffs on most other U.S. imports based on a declared emergency concerning the U.S. trade deficit. The Supreme Court ruling did not specifically address refunds. On March 4, 2026, the Court of International Trade (“CIT”) ordered the Trump administration (the “Administration”) to begin refunding all tariffs imposed under the IEEPA. The Company paid approximately $11.7 million in IEEPA tariffs prior to the Supreme Court decision. No further tariffs under the IEEPA were paid subsequent to the Supreme Court decision. However, the prospective beneﬁt of the elimination of the IEEPA tariffs was approximately offset by the immediate implementation of new tariffs under Section 122 of the Trade Act of 1974. The Company intends to maintain all legal and administrative rights to potential recovery of IEEPA tariffs paid. We are accounting for any such recoveries under the GAAP gain contingency model. No receivable has been recognized as of March 29, 2026 due to uncertainty regarding the realizability of the refund process and administrative approval.

Background MasterBrand, Inc. is the largest manufacturer of residential cabinets in North America with a portfolio of leading residential cabinetry products for the kitchen, bathroom and other parts of the home. References to “MasterBrand,” “the Company,” “we,” “our” and “us” refer to MasterBrand, Inc. and its consolidated subsidiaries, unless the context otherwise requires.

Basis of Presentation Our consolidated financial statements are based on a 52- or 53-week fiscal year ending on the last Sunday in December in each calendar year. Our fiscal 2026 and 2025 consist of 52 weeks ending on December 27, 2026 and December 28, 2025, respectively.

The condensed consolidated balance sheet as of March 29, 2026, as well as the related condensed consolidated statements of income, comprehensive income, cash flows and equity for the thirteen weeks ended March 29, 2026 and the thirteen weeks ended March 30, 2025 are unaudited. The presentation of these financial statements requires us to make estimates and assumptions that affect reported amounts and related disclosures. Actual results could differ from those estimates. In the opinion of management, all adjustments, consisting of normal, recurring accruals, considered necessary for a fair statement of the financial statements have been included. Interim results may not be indicative of results for a full year.

The condensed consolidated financial statements and notes are presented pursuant to the rules and regulations of the Securities and Exchange Commission and do not contain certain information included in our audited consolidated financial statements and notes. The 2025 condensed consolidated balance sheet was derived from our audited consolidated financial statements, but does not include all disclosures required by United States Generally Accepted Accounting Principles (“GAAP”). These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 28, 2025.

On February 20, 2026, the Supreme Court of the United States (the “Supreme Court”) issued a decision in Learning Resources, Inc. v. Trump and Trump v. V.O.S. Selections, Inc., two appeals concerning tariffs President Trump imposed under the International Emergency Economic Powers Act (“IEEPA”). The Supreme Court held that the IEEPA does not give the President authority to impose tariffs. The Supreme Court thus affirmed a lower court decision that invalidated two sets of IEEPA tariffs: one set of tariffs on imports from Canada, Mexico, and the People's Republic of China based on declared emergencies concerning illicit drugs, and another set of tariffs on most other U.S. imports based on a declared emergency concerning the U.S. trade deficit. The Supreme Court ruling did not specifically address refunds.

On March 4, 2026, the Court of International Trade (“CIT”) ordered the Trump administration (the “Administration”) to begin refunding all tariffs imposed under the IEEPA. The Company paid approximately $11.7 million in IEEPA tariffs prior to the Supreme Court decision. No further tariffs under the IEEPA were paid subsequent to the Supreme Court decision. However, the prospective beneﬁt of the elimination of the IEEPA tariffs was approximately offset by the immediate implementation of new tariffs under Section 122 of the Trade Act of 1974. The Company intends to maintain all legal and administrative rights to potential recovery of IEEPA tariffs paid. We are accounting for any such recoveries under the GAAP gain contingency model. No receivable has been recognized as of March 29, 2026 due to uncertainty regarding the realizability of the refund process and administrative approval.