Rock Solid Cargo lives up to their name! Every trailer from Rock Solid comes with an 11 gauge frame, which is quite a bit thicker than industry standard 14 gauge. They take it a step further and use 1×1-1/2″ tube frame in their wall and roof construction, they avoid open channels and those little flimsy tubes you find in other trailers. All of our trailers will have AT LEAST 3/4″ plywood floors and 3/8″ plywood walls.