I have recently created a melamine snake rack. I only created the sides and slots, not the backing. I was trying to only use one sheet of melamine. I am going to be doing back heat and not under heat. This is not the discussion point of the post. I was wondering what I can use for the backing since I am going to have heat tape directly on the backing. Would it be okay to buy a thin piece of plywood and coat it in foil tape or would it be easier to simply cut another piece of melamine to cover the back? I would link a picture but imgur is not working. The dimensions are "25.25in x 48in"