Forum Discussion
covered_wagon
Oct 26, 2016Explorer
Cannot use any foam board under a NL camper no matter how rigid. The majority of weight at the side walls of the camper causes the mid section/ bottom belly panel to push upward with the sides of the camper crushing the foam downward.
This problem is worse as you center the camper in the truck bed, since this places the camper side walls over a low point in the truck bed corrugation. Causing little or no support to where needed, it distorts the campers fiberglass belly.
I've experienced this with my NL so I always use the plywood and rubber matt. No rigid foam.
I saw an old Big Foot camper yesterday sitting on 2X12's in the bed. They had the 2X12's sticking all the way out to support the extra 2 feet of camper.
This problem is worse as you center the camper in the truck bed, since this places the camper side walls over a low point in the truck bed corrugation. Causing little or no support to where needed, it distorts the campers fiberglass belly.
I've experienced this with my NL so I always use the plywood and rubber matt. No rigid foam.
I saw an old Big Foot camper yesterday sitting on 2X12's in the bed. They had the 2X12's sticking all the way out to support the extra 2 feet of camper.
About Travel Trailer Group
44,052 PostsLatest Activity: Oct 29, 2025