Simpson Strong-Tie ABU88Z 8 x 8 Adjustable Post Base ZMAX Product Details The ABU is designed to attach wooden posts to existing concrete in high capacity applications. The built-in 1" standoff of this adjustable post base helps to prevent rot at the end of the post. The ABU has a slotted anchor hole in the base for adjustability and attaches to the post with nails, Strong-Drive SD Connector screws or bolts. This versatile post base makes a cost-effective option for securing a post to the foundation, with a design built for maximum uplift performance. Key Features The slot in the base enables flexibility around the anchor bolt, making precise post placement easier 1" stand-off design meets code requirements for structural posts installed in basements or exposed to weather or water splash Increased uplift loads for earthquake or wind loading Material Finish is ZMAX and some in stainless steel; see Corrosion Information