Originally Posted by Mallow
Can I mount wood rails to this metal that was cut away for my high top? The rails would support a plywood bed. Think the integrity of the van walls is gone because of the cut away?
Welcome to the forum Mallow!
I don't like the looks of the roof structure as it looks like too much was cut away already. On my Chevy Express 3500 rv with fiberglass top, Airstream left much more roof bracing to the point it intrudes a bit into interior space and storage. But I appreciate that it gives strenth the body structure already weakened by the roof cut-out.
In this pic from behind my microwave, you can see the thick curve of the roof structure beneath the reflectix. Sorry I did not take a "before" picture that would reveal the structure around the fiberglass roof's edge, prior to concealing it under the insulation .
Looks like this was cut away flush in your van, so I'd vote for supporting any bed from the floor rather than from above.