I built a shelf system in our 2007 Beaver. Used uprights to take the weight and used small L brackets with small screws to avoid what you are concerned with.
Then... When wife didn't want them any longer
it left only a few small holes.
Originally Posted by taz4028
Wife wants shelves in rear closet. Wondering what is behind the rear wall before I go drilling holes for mounting lags.Seems like a hollow space,just don't want to drill into the outside cap! Thanks