This is an amazingly compact way of mounting your van build electrical system to the wall. It minimizes your footprint in the van, creating more space for everthing else you want to put in your van. This was custom designed to fit over the wheelwell of a Mercedes Sprinter van, but could also be used in any van.
This was custom designed, fabricated and powder coated. I have two extras on hand, with different battery box sizes, listed below. If you battery is smaller, you can simply place a board in the battery box compartment and have a floor on which to mount any size battery, smaller than the bordes of the perimeter.