Established in 1969, Midwest Manufacturing is one of the largest manufacturers of building materials in the Midwest region. It produces steel siding and roofing, steel and fiberglass doors, composite decking, treated lumber, fasteners, stone, blocks, and engineered roof and floor truss. It additionally provides custom trims and trim coils, soffits, fascias, gutters, downspouts, chimney flashing kits, cupolas, snow jacks and equestrian products. Midwest Manufacturing sells products through a network of retail stores.