Roughneck 3.4-Oz. Heavy-Duty Woodpile Tarp - Brown/Green, 4ft. x 18ft. Specifically designed to cover wood piles Made with 3 layers for superior durability First layer is tightly woven 10 strands per inch x 10 strands per inch of polyethylene fiber Woven fabric has a double laminated coating of polyethylene, producing a solid weight of 3.4-oz. per square yard Delivers excellent tensile strength and tear resistance