Challenger Sidewall Construction
All sidewalls are vacuum-bond laminated for added strength and rigidity. The lamination process eliminates “soft walls,” because it integrates all layers, turning them into one solid structure.
All wall openings for doors, windows and other components are framed in aluminum tubing. This strengthens the coach body. The 5.5-inch welded aluminum header provides additional strength in slide room openings. Angled supports in the sidewall add further strength using the techniques perfected in bridge construction.