This is our 72 in. x 21 in. trapezoid clear polycarbonate waved roofing. An economical option for covering decks and patios these durable panels are stronger and maintain their surface condition much better than traditional fiberglass panels. Clear panels offer excellent light transmission and protection allowing you to enjoy your space for years to come. Made with polycarbonate, our corrugated panels are 20 times stronger than 5 oz. fiberglass corrugated panels and are designed to withstand a wide range of surface temperatures minus 40 to 270F.