So when I purchased my camper, it looked great. I discovered fairly quickly a soft spot on the backwall. I had the marvelous idea of ignoring it. Over the last 2 and half years (3 camping seasons) the backwall has slowly deteriorated, until my daughter invited a friend over, and despite repeated warnings to not to do so, she climbed up the back wall and broke thru the wood paneling. I read @jmatasov 's thread http://www.popupportal.com/threads/1999-starcraft-spacemaster.110273 And i'm trying a similar rebuild. You can see when I got the top plate of the backwall off, that I was in for a bigger project than I was hoping for: I removed all the trim piece's (bagging each type of screw in it's own ziplock bag, and labeling it with a sharpie), lights, and spare tire rack. Also went inside and undid all the screws that attached to the backwall. Note: The lights near the damaged area were half full of water. NOT a good sign. I ended up cutting the rear taillights off, since I wanted to replace with LED's anyways. The marker lights I"m undecided at the point. I then removed all the staples, and peeled the aluminum/panelboard combo off. Here's the other side: Not good. Not good at all. I also found while doing this that the floor was starting to take damage. I measured EVERYTHING, and took photos of it as I did it. I found some "funny" wood dimensions: Taking a cue from @jmatasov, I didn't remove the existing frames till I could recreate the existing ones. The one's that are on there are NOT coming off in one piece, the wood is too damaged. Off to buy parts. RV store to get some Dicor, Lowe's to get lumber and wood hardener. While in the lumber section, I had a small panic attack. That board I've pictured above is 1.5" x 1" (Well, 15/16th) I couldn't find ANYTHING remotely close to those dimensions. The 1.5 I could fudge, since it wasn't in a critical direction, but that 1", it's what the top cap and the aluminium skin rested on. I wasn't sure how much variation could be tolerated here. Not to mention I didn't want to make this more complicated than I had too. I ended up buying pine planks (1.25 x 2.5) and ripping them on a tablesaw to the correct dimensions. (Plan B was contact a local sawmill, but I didn't want to lose the rest of Saturday, and all day Sunday that I had blocked out to work on this, never mind if a sawmill would sell me 3 pieces of wood) This was 3 pieces of wood before I started: Since the tablesaw was at my fathers, we ended up having dinner together, and the rest of the day was lost. Oh well. There is always tomorrow. Plan for tomorrow is: Exact dimensions of existing frames, and begin cutting the new frames. I've picked up a Kreg Jig to help attach the frames together. Ambitious paint the wood hardener onto the small soft spot on the floor. Overall plan is: Create new frame. Remove wiring Attempt to remove wood from Aluminum Purchase new panel board (Luan?) and figure out how to cut it? (Lowes?) Glue the panelboard to the aluminum Attach the panelboard to the new frame Remove existing frame Try and put it back together. Replace lights (most likely all new) Hope it all fits.