large size HDPE sheets 5/8 whosesaler-10mm-50mm HDPE Sheet . 5-25mm recycled HDPE sheets whosesaler-Cus-to-size HDPE. Black High Density Polyethylene HDPE Plastic Sheets mon full size of per sheet is 4*8ft (1220*2440mm). We offer customize service, UHMW Sheets can be cut to any size as customer’s requirement. Recycled HDPE Black Sheet