Classic Composite Series Trademark Top Rail, 3.5 in W, 2.6 in H, 8 ft L, Colonial Profile, Composite, Matte White. Made from a mix of recycled wood and plastic fibers, TimberTech composite railing boasts superior durability to wood, while being extremely low maintenance. With the most customization options, from traditional milled-wood-inspired looks to sleek, contemporary designs, mixing and matching components is a breeze. Choose from multiple top rail design, infill options, and other accessories to customize your railing.