Azek® Capped polymer decking is designed for unrivaled high-performance and beauty. Azek® decking is engineered to last longer than any other composite decking, with the most natural hardwood look. Made of 100% PVC (both in the core and surface). Traditional cathedral wood grain patterns offer a natural, elegant style. Choose from plentiful hues ranging from rich browns to grays — and natural hardwoods like mahogany. Backed by a Lifetime Limited Warranty and a 50-Year Limited Fade & Stain Warranty.