Originally Posted by JimCat2000
Has anyone heard of a problem using pressure treated plywood against the aluminum wall channel?
What replacement floor material would you recommend??
Like Frank said, never use pressure treated plywood anywhere near an Airstream. It has a bunch of nasty stuff in it including copper.
I recommend you use the highest quality marine grade plywood you can afford.
The best I've found is Joubert Marine grade.
Aquatek, Hydrotek are also high quality products.
You want something that meets BS 1088