12’ Dune Sport Toy Hauler floor replacement

The walls & floor are probably made of 2x2`s -- In the factory, the walls are made on a table & one side is glued & stapled -- The other side is left open so when installed, it`s secured with screws & then the paneling in stapled to that side -- Find the side that was not glued & remove the paneling -- Unscrew the wall & remove it-- Don`t worry about the ceiling falling or sagging -- It won`t -- The floor may be OK after it dries -- It`s probably 5/8th OSB & 2x2`s -- Homedepot will have anything you need -- Remember, You gotta tear hell out of it before you can fix it -- Have fun -- Bill Willard

The walls are aluminum framing sitting on 3/4” OSB. Am I going to need to jack up the side walls to be able to slide the flooring in, I wonder. And, to find the source of the leaks, am I going to first need to remove the bottom panel from the outside trailer wall to see if the water leaked from one of the seams?

https://i.imgur.com/83p9XNel.jpg

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https://i.imgur.com/NhUXkjbl.jpg

Well, it doesn’t look like the photos are posting from the link and I have tried it two ways...on the side there is a leak you can see the previous owners didn’t install the trim pieces correctly. We hadn’t yet resealed and replaced all of that before we discovered the mess. All the way around the trailer the trim pieces need to be replaced and entire trailer sealed. That would be step 1. I will be looking for other leaks outside of these obvious spots on the outside.

I was referring to inside walls -- Probably can`t remove paneling from outside walls -- Bill Willard

Yes, I understood that , thanks for clarifying. ??

is it possible you could replace just the left half of the floor? which would allow you to remove one section of the floor at a time and slide the new (half) floor piece one under the wall. you might need some reinforcement underneath where the seams on the two halves meet.

Yes, I don’t see why not. I opened up the bottom of the trailer yesterday, there is a black plastic layer between the OSB and the frame. Water poured out on the side I knew was bad and Had already torn some of the floor out. I went around the whole perimeter and the trailer is wet, rotten, and moldy on both sides of the underneath of the floor up into the corners of the front of the trailer. Nothing along the drop down door. The left side of the trailer has the cabinet the refrigerator is in and in the bottom portion is the gas furnace and the electrical for the trailer. Attached to that cabinet is the bathroom. And to the right of the bathroom (along the front of the trailer) are the kitchen cabinets. The right side of the trailer has nothing on it except for the sofa attached to the wall and the electric lift bed that is bolted to both sides of the trailer. No matter how I replace the floor, in one piece or. Sections, I have to remove all the cabinets and the bathroom. Sigh....today I will plan how I am going to begin taking it apart.