BMC Stock Holdings, Inc., formerly Stock Building Supply Holdings, Inc., is a diversified lumber and building materials (LBM) distributor and solutions provider that sells to construction and repair and remodeling contractors. The Company's operating segments include Mid-Atlantic, Southeast, Texas, Intermountain, West and Mountain West divisions. Its primary products are lumber and lumber sheet goods, millwork, doors, flooring, windows, structural components, such as engineered wood products (EWP), trusses and wall panels, and other exterior products. Additionally, it provides solution-based services to customers, including design, product specification, installation, and installation management services. It offers a range of products sourced through a network of suppliers. It also offers various products, including hardware, wood boards, gypsum, insulation, roofing, siding and flooring. The Company offers scheduling, supplier and subcontractor management, and other services.