Originally Posted by ibskot
About riveting, am I wrong, but if I want to hang something on the wall i just drill a 5/32 hole and pop rivet (inside not exterior) it to the wall? When do you ever have to hit a "stud"? What about anchoring a floor cabinet to the wall?
What you're calling a stud is actually a rib. It's not essential
to rivet to the ribs, but always better if you can do so. The shape of the rib makes it a lot more rigid than the (inner) skin. If you rivet to the skin alone, you can experience oil-canning— while the trailer is in motion the skin flexes under the load, which can lead to a dent or bulge or wrinkle in the skin where you installed the rivets. The heavier the load you're hanging from the rivet(s) and the fewer rivets you use to hang the load, the more pronounced the problem will be, all other things being equal.
Overhead cabinets should always be secured to the ribs. Even an empty cabinet is heavy, and a full cabinet even moreso.
Floor cabinets and bulkheads are a different critter; it's the floor, not the wall, that's load-bearing, and the rivets in the inner skin are just for positioning, not for load-bearing.