Builders FirstSource, Inc. is a supplier and manufacturer of building materials, manufactured components and construction services to professional contractors, sub-contractors, remodelers and consumers. The Company's operating segments include Northeast, Southeast, South and West. As of December 31, 2016, it operated at 400 locations in 40 states across the United States. It offers an integrated solution to its customers providing manufacturing, supply and installation of a range of structural and related building products. Its manufactured products include factory-built roof and floor trusses, wall panels and stairs, vinyl windows, custom millwork and trim, as well as engineered wood that it designs, cuts and assembles for each home. It assembles interior and exterior doors into pre-hung units. Additionally, it supplies customers with offering of professional grade building products, such as dimensional lumber and lumber sheet goods, and various window, door and millwork lines.