Hide details. Choose ite to buy together. This item: Sheet, HDPE, Black, 1/8 In T, 24 x 48 In. $23.35. In Stock. HDPEps from and sold by . $13.86 HDPEpping. BuyPlastic Black HDPE Boat Board, Marine Grade Plastic Sheet 1/2" x 12" x 12", High Density Polyethylene Panel. $32.24.