Install with Outdoor Accents structural screws and hex-head washer for a decorative look (sold separately). The Avant Collection features straight edges and chamfered corners for a clean, timeless design. Dimensions: 10-1/2-in x 10-1/2-in. Made from 12-gauge steel. ZMAX galvanization with black powder coat offers extra corrosion resistance for exterior and treated-wood applications. Install with 3-1/2-in Outdoor Accents structural screws (SDWS22312DBB) and STN22 hex-head washers (sold separately