Yes and no. Yes it's just filling the gaps but the bed has to be 100 percent square to do so. If you look closely at the bed, you will notice that there is not a whole lot of welding on the inside. It seems like a real easy bed to create, but I think it was harder than a fully-molded one. A fully-molded bed is nothing more than a lot of welding, grinding, and more welding and grinding. Each bed panel was CNC cut with a 1-inch lip surrounding the perimeter. The lip was punched with 1/4-inch holes every few inches and then bent back 90 degrees. Each hole was welded to either the bed frame or the bed sheetmetal. We welded the holes (called rosette welds) in between the bedside and the inner skin so there would be no visible welds on the inside of the bed, just rolled edges.