Tam-Rail is manufactured with a state of the art, patented triple-layer technology that provides stiffness and rigidity all in a product that is light in weight. The outer layer, made from a durable capstock, provides not only a great look, but also added protection. It is designed for weather resistance. The middle layer is an innovative composite wood and foam core that is formulated for stiffness, providing excellent strength. The inner layer is formulated for impact resistance and provides a protective and sturdy base.