Investor Presentaiton

Industry Leading Customer Base MasterBrand channel mix 9% MasterBrand has leadership in dealer channel... Overview of primary sales channels ■ Dealer 10% Retail: In Stock 55% ■Retail: Semi-Custom 2021 Channel Size 26% % of total ■ Builder Dealer Channel Retailers / Home Center Channel $6.3bn ~57% $3.7bn ~34% Primary End Market Exposure R&R / New Home Construction R&R 55% Dealer: provide customer education, service and design consultation 26% In-stock retail: standard products with little customization Customer Concentration Low High (25,000+ Nationally) (Top 3 represent ~60%) 10% Semi-custom retail: common box but offer some customization 9% Builder: sold directly and highly levered to single-family housing starts Source: Company estimates as of December 6, 2022 Builder Channel $1.Obn ~9% New Home Construction Medium (Growing trend of National Homebuilder Consolidation) ...and why it matters Fragmented network: Requires scale to address and allows a variety of consumer touch points Multi-brand strategy: Dealers offer multiple brands, enabling trade up and down to drive sales High switching costs: Physical showroom investments and sales training drive retention 6

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