Fiberglass shell itself on a Trillium
is thin and is not going to support a ladder. This is why you see wood on the inside around all the windows
, as well as behind the door hinges. Not enough to bolt through, you need wood on the inside.
+10 to below. Easy access to the roof that barely supports itself, what is the objective?
Roof will NOT support a storage box. If you want a roof top storage box, look at the tow vehicle instead.