Yes, they are 1.5" thick aluminum/PP/glass, nice panels. I will be using the same material for the floor of my camper, the rest will be glass skins both sides. The camper design is kind of going a little more equipped than basic, just trying to figure out where to draw the line between needs and wants. Came up with a couple of really good ideas and every time I do so I find 10 more ways to manipulate the floor plan for more "free" features and room. Are you going to run propane or diesel appliances in yours Ward? I like the propane in the 650 but I'm leaning toward diesel in this unit for space and convenience, we move a lot of Espar stuff so the heating is a no brainer, just looking at cook top options.