Floored

 

This is the portion of the floor that had rotted through-all the way across the top and down the side about an inch in.  We cut a huge square because the floor is all one unit and we needed a large section to secure everything down to.  

 

This is the bulk of the problem, the floor had buckled and pulled up off the frame, as shown by the sparks flying out of the gap.  The gap went all the way to the door, which pulled up off the camper frame as well, meaning the door would not stay shut. Or set down in the door frame.

 Matt worked as long as he could last night before we had to run in and help break the set for the play.
The Dremel came in handy for cutting off old screws that were in the way of the new floor.

 Back at it this morning, the new piece of floor had to go around the lift system, so Matt's smoothing the notch cut for that.

 It's not a perfect fit, but it works!  We screwed the old and new floors into sections of 2x4's underneath the floor on both sides of the metal frame.  It only added about 4 pounds to the weight.

 We put the cabinet back in and added another piece of wood to help hold it tight to the wall and floor.

We still need to fill the gaps and put down a new floor covering and buy leveling jacks to ensure the camper is level and not pulling on that weakened spot.  The door sits in the door frame now, the floor is on the camper frame and the whole thing has been caulked together and covered in waterproof silicone.  I can't imagine where new water could get in.

I cut the linoleum in every other corner of the camper (all inside cabinets) and drilled small holes into the wood in many spots and poured wood hardener in the holes.  It turns the wood into plastic, making it hard and waterproof.  It works even if the wood is already rotting, which is isn't, thank goodness, but the other front corner feels a little soft in a couple of spots and the side cabinet was leaking back on the Florida trip in 2009 and that wood is dry, but felt a little crumbly.  It won't now.  That wood hardener works wonders.  I REALLY hope this is it, the end of the wood drama in the camper.  One more decent afternoon of work will have the floor finished and sealed.  I am not going to stress much about covering it until I know it's not going to need more work.  I bought a couple throw rugs to use for now.