Builders FirstSource, Inc. is a supplier of building products, prefabricated components, and value-added services to the professional market segment for new residential construction and repair and remodeling. It provides customers with an integrated homebuilding solution, offering manufacturing, supply, delivery and installation of a full range of structural and related building products. Its product categories include Manufactured Products; Windows, Doors and Millwork; Specialty Building Products and Services, and Lumber and Lumber Sheet Goods. It serves customers from distribution and manufacturing facilities (some of which are co-located) that produce value-added products such as roof and floor trusses, wall panels, stairs, vinyl windows, custom millwork and pre-hung doors. It also distributes dimensional lumber and lumber sheet goods, millwork, windows, interior and exterior doors, and other specialty building products. It operates in 43 states with approximately 585 locations.