About This Product Outdoor Accents post bases secure posts or columns to concrete and are ideal for outdoor projects like pergolas, patio covers, and other top-supported structures. These post bases have a clean, simple design and come with galvanization and a powder-coat for added corrosion resistance. The Post Base APVB44 4x4 Black-Powder-Coated ZMAX includes a 1-inch standoff from the concrete to help prevent post-end rot due to moisture. Part of the Collection. Key Features Engineered to comply with strict building codes for seismic or high-wind conditions Slotted for flexibility Includes a 1-inch standoff to help prevent rot at the post end Nominal post size: 4x4 Steel gauge: Base 16-gauge, straps 12-gauge Galvanization with a powder coat provides extra corrosion resistance for outdoor and treated-wood applications Side plates available Install using structural screws and hex-head washers (sold separately)