Builders FirstSource, Inc., together with its subsidiaries, manufactures and supplies building materials, manufactured components, and construction services to professional homebuilders, sub-contractors, remodelers, and consumers in the United States. It offers lumber and lumber sheet goods comprising dimensional lumber, plywood, and oriented strand board products that are used in on-site house framing; manufactured products, such as wood floor and roof trusses, steel roof trusses, wall panels, stairs, and engineered wood products; and windows, and interior and exterior door units, as well as interior and exterior trims and custom products under the Synboard brand name. The company also offers gypsum, roofing, and insulation products, including wallboards, ceilings, joint treatments, and finishes; and siding, metal, and concrete products, such as vinyl, composite, and wood siding products, as well as exterior trims, other exteriors, metal studs, and cement products.