Yes, the wood piece goes from the floor to the ceiling. I don't know for sure what the ceiling is made from. It's the same as the rest of the interior skin. We are taking everything out and replacing the floor, checking and repairing the frame, new axles, etc. So that should fix what caused it? How does one repair the cracks. Do we just fill it with some kind of filler and sand and paint. Or will it need to be hidden with some kind of trim? It seems like every time we do something we find more to do
Glad we're not in a big hurry!