Hello. Couldn't find any info on this in any of the searches I did on this forum or other internet searches.
Replacing a full floor (rot everywhere) of a 1969 Airstream Sovereign
The floor is gone. Wood spacers are between the frame and the C-channel.
I'm putting 3/4" ply back in, but not sure which width to use.
It seems that from end of C-channel to opposite side is about 92 3/8" but when measuring from the edge of the frame to the other edge, its around 91".
So I'm not sure which to go by. If I had to guess, I would go with the frame and not the C-channel width as to not have any over hang on the frame.
I also though that maybe the shell was pulling out and that maybe the edge of C-channel should match the edge of the frame. Though the holes of each may not match up if that were the case.
Any help is appreciated. Thank you!