Ply Gem Trim and Mouldings last much longer than traditional trim materials and come in a variety of options that help you achieve nearly any desired look. When you choose Ply Gem® Trim and Mouldings, you get more than an easy install – you get an extensive offering that’s beautifully constructed and as easy to work with as wood. What’s more, you can forget about costly maintenance. Our cellular PVC products won’t absorb moisture, so they won’t rot, crack or warp. Unlike engineered wood, they don’t attract insects and don’t contain chemicals like treated wood.