WPCguard decking | composite decking stocked at . WPCguard decking is made from eco-friendly content (recycled wood and plastic polymers). that means fewer felled trees and less landfill waste. then every board is bonded on three sides to a durable outer core that resists mold mildew insects and weather. there’s no sanding staining or re-sealing needed but there is a 20-year warranty .