Do I need an adapter or spacer?
This depends on your build. If it is a van, most likely the answer is yes. Your wall needs to be flat and strong and fit into one of our inner frame ring ranges. Recommended materials to build spacers from can include any hard wood such as poplar, birch, or fir, as well as aluminum tubing. Do not use ply wood or other soft woods or any soft / flexy insulation material.