While walking home from storing my camper at storage facility, I past a body fender place. Sitting out in it's yard was a sad looking camper. Now since there are not a lot of truck campers on Long Isl...
There are several studs visible when you look close. Have to remember in a lot of trailers and TC, a "stud" is a nothing more than a piece of 3/4" x 1" or 1" x 1-1/2" wood. Because of the small size, they sheared off easily when the object was hit.
My 2004 Lance uses 3/4" x 1" and has survived for 13 years with no sign of issues or stress.