Minimum Line Item. Minimum Order: $25 USA, $150 Canada/Mexico/PR/VI, $250 International. hdpe sheets Utility Grade Marine Board HDPE (High Density polyethylene) Plastic Sheet 1/2″ x 12″ x 24” Black lor Textured 4.8 out of 5 stars 397 $24.56 $ 24 . 56 $34.95 $34.95 large hdpe plate 12mm p