Patriot Docks Heavy-Duty Foot PlateThe HD foot plate is mounted to the bottom of the dock pipe support posts. The 10"x10" steel, zinc oxide-coated foot plate includes two 1/2" stainless steel bolts to clamp to 1 1/2" Sch 40 Pipe. One extra bolt location is provided as a backup.2-1/16"" i.d.Patriot Dock components are modular to make it easy to customize the size and configuration for maximum versatility. We have prepared many dock packages which can be combined to almost any layout. Your dealer can put together the plan that works best for you. Check out some sample packages below. You can add more sections or combine packages to make just about any configuration. Patriot Docks are the price leaders in the industry- big volume translates to low costs.