To say that the floor was an issue would be an understatement. Replacing the floor in an Airstream or Argosy is a challenge. From my research the floor in these rot in the same places, so if you are ever looking to buy an older Airstream or Argosy, these are the places to check for floor damage: (1) near the door and on both sides of the door, (2) under and near the fresh water tank (overfilling will cause water to spill), (3) the under and behind the shower (4) under the toilet. Most of these places will be hidden by furniture/cabinetry so they are hard to spot.
As I have said before, the floor must sit inside a C-Channel that runs the length of the trailer on each side. The Floor slides in about 1 to 1 ½ inch. Since the camper has been sitting for months with no floor, there was some sag on the C-Channel, especially at the door were everyone was stepping to come in and out. We used some jacks to lift upon the body and widen out the C-Channel where needed to place the floor. Also the body had bowed out some so we had to do some adjusting to fit it back into place.
Adding that extra support made the installion much easier, I don’t think we could have placed a full piece across the width without causing some damage to the body.
We marked where the frame rails were so that the floor could be secured to the frame in addition to the floor supports. Bolts were used in the body, to bolt the body to the frame. There are so many screws and bolts, nothing should move. We used stainless and brass so that these will not rust in the future.
Getting the floor in place was such a relief, we knew this was going to be difficult. It is so nice to be able to walk around in the camper without fear on falling through the belly pan. Next step is get her all wired and ready for the walls to be insulated. We are not moving as fast as we would like but you can’t rush a labor of love.