Lumber Tarp - 20' x 28' (6' Drop & Flap) - 14 oz./18 oz. Combo Red Tarp20 28 Midweight Combo Lumber Tarp 6 Drop & Flap 18 oz 14 oz PVC Red This 20 28 red combo lumber tarp delivers heavy duty protection and lighter handling with its hybrid material construction. The 18 oz PVC coated polyester top resists wear from sun and weather, while the 14 oz sides reduce the overall weight for easier setup. With a 6 drop and 12 rain flap, it provides reliable full coverage for tall flatbed loads especially when used in pairs on 53