Profile: Timber Roots MTD is a supplier of quality building products. Our products include cement products & accessories, decking, drywall products, engineered lumber, fasteners & tools, insulation, lumber & boards, metal goods, OSB & plywood, particleboard & hardboards, poly & housewraps, roofing and siding. We are equipped with engineered lumber, floor truss systems, high-wall systems, roof systems and wall panels.