Profile: Jennings Builders Supply specializes in offering lumber, flooring, stone & tile, cabinets, windows & doors, hardware and engineered systems. Roofing materials include decking, paper, ventilation & supplies available in shingles, cedar, slate, imitation slate, flex-shake shingles, metal and copper. Hardware products include paint & painting supplies, door, window & cabinet hardware, building supplies and plumbing & electrical supplies.