[Site Map] For 77 years Big Buck Builders Supply, the lumberyard for professionals, has been fulfilling builders needs in the Milwaukee to Chicago corridor. A family run business since 1929, Big Buck Builders Supply is a full-service, full-line lumberyard exclusively serving professional builders. Affiliated companies include Custom Component Company, manufacturers of trusses and wall components for more than 45 years, and ProMillwork, manufacturers of pre-hung doors and pre-finished millwork. Online bidding and price updates available. 262-632-2773.