1/16 Durable hdpe pad supplier-HDPE sheets 4×8 manufacturer . 1/16 Durable pe300 sheet factory--HDPE Sheets for sale, HDPE See a video thickness guide of 10 mil below. 16 MIL (.016 inches thick)26 gauge: The 16 mil is approximately 1.5 times thicker than the 10 MIL. It would take approximately 62.5 sheets of 16 MIL stacked on top of each other