0001941365 2026-05-22 2026-05-22 false 0001941365 8-K 2026-05-22 MasterBrand, Inc. DE 001-41545 88-3479920 3300 Enterprise Parkway Suite 300 Beachwood OH 44122 877 622-4782 true false false false Common Stock, par value $0.01 per share MBC NYSE false