Sheet and Post Construction with 100-1/2" Inside width above scuff to bottom of top rail; Full height rivet-less anti snag sidewall white plastic liner; Five times more puncture ...
http://www.trailmobile.com/site/epage/58263_638.htm

... 01JAT ULTRA PLATE; 01JA-A PLT (Poly Lined Trailer) 01JA-P PLT (Poly Lined Trailer) 01JA-C PLT (Poly ... Sheet and Post Construction with 101" Inside width above scuff to bottom of roof bow ...
http://www.trailmobile.com/site/epage/58262_638.htm