Durable & Long-Lasting: Since WPC decking is a hybrid of wood and plastic, it possesses the combined strength of both materials. WPC decking has a much longer lifespan than traditional normal decking, due to the added strength from the thermoplastic components. With a lower wood content, it becomes more resistant to corrosion, rotting, decay, termites, and mildew.http://www.decowpcwood.com/wpc-decking/