Another commonly overlooked variable is the thickness of the foot plates, which are usually 3/16-inch-thick plate. However, the tube can usually be trimmed to fit once you're ready to add foot plates. In a slow-speed trail 4x4, it's often acceptable to use plates bolted through nonrusted sheetmetal as long as the area of the plate is large enough to distribute the load. Here, you can see the stock Smittybilt plate which is nice and large and also bolted in two planes. We left this in place while fabricating the rear hoop, which was welded to the floor.