The standard size of the HDPE sheet is 48 x 96 inches. For the thickness of 1-5 mm, the standard size of HDPE sheets for industrial applications is 48 x 96 inches, 40x 80 inches. Material: We design the sheets using suitable materials based on clients' requirements. Sometimes, we use Polyethylene (PE) or Low-Density Polyethylene (LDPE Get Price.