Poly lumber is easily molded to meet almost any desired shape a major advantage over wood. Poly lumber works similarly to wood -  it can be shaped using conventional woodworking tools/ at the same time, it is waterproof, stain-proof, and resists all types of rot and mold. Poly lumber never needs to be painted or re-painted, as the final lumber product can be manufactured in a broad range of colors, including simulated wood grain details. Poly lumber is highly weather-resistant making it last a life time.