add a deck to class c

I don't know of anyone with a class C, but I know of several people with class As and fifth wheels that have raised frames for solar panels on them. We have a truck camper that has one. No welding, but made of dimensional aluminum bolted with stainless hardware. I carry a welder on the road (I built this at a site), but it's flux core so won't do aluminum.



We've put >10K on it at highway speeds without issue.