Tarps Polyethylene woven laminated tarpaulin measuring 20' x 20' has a thickness of 5 mil and features grommets for every 3'. Tarpaulin with reinforced hem is rot, rust proof as well as sun, fade resistant and used in multiple applications. Rot and rust proof. Grommets every 3 feet. Sun and fade resistant. Thickness: 5 mil. Material: Polyethylene. Reinforced hem. Heat sealed seams. Length: 20 ft. Multiple Use. Width: 20 ft. Tarps Polyethylene Woven Laminated Multiple Use Tarpaulin is rot and rust proof.