Material. 1/2" HDPE, 1/2" PVC, 1/8" ABS (21) 1/2" HDPE, 1/2" PVC, 3/16" ABS (16) 1/2" HDPE, 1/8" PETG, 3/16" ABS (34) 1/2" HDPE, 3/16" ABS (9) 1/2" HDPE, 3/16" Acrylic, 3/16" ABS (15) 12 Guage Steel (Deck); 16 Gauge Steel (Panels) (18) 12-Gauge Powder Coated Steel (12) 12-gauge Powder Coated Steel (9)