As I understand it, many trailer front sheets are not backed by lauan because of the curvature. The plywood doesn't bend that well. Maybe they use something more flexible though.
2014 ORV Timber Ridge 240RKS,8500#,1250# tongue,44K miles
690W Rooftop + 340W Portable Solar,4 GC2s,215Ah@24V
2016 Ram 2500 4x4 RgCab CTD,2507# payload,10.8 mpgUS tow