Simpson Strong-Tie ABA46Z Z-Max Standoff Post Base, 14-gauge, 4 x 6The slot in the base enables flexible positioning around the anchor bolt, making precise post placement easier. The 1" standoff helps prevent rot at the end of the post and meets code requirements for structural posts installed in basements or exposed to weather or water splash. They reduce the potential for decay at post and column ends. 4 x 6 Adjustable post base 1" standoff height between post & concrete Reduces the potential for decay at post &