Our 13 oz. 20' x 40' white vinyl tarps from Tarp Surplus offers dozens of construction site, home, marine and industry uses. Each 18mil (13 oz./sq. yd.) laminated 20' x 40' vinyl tarp is made with high-density PVC materials. waterproof vinyl tarps resist abrasion, rips and tears, grease, oil, mildew and acid. Our vinyl tarp has double-stitched hems and heat-sealed seams with sturdy grommets placed around all four edges. Use this 10' x 12' replacement canopy cover for hauling cargo, or as divider curtains, awning covers or marine covers. Our white vinyl tarps are used as wind screens and salvage covers. Choose vinyl tarps when you need a cover that will stand up to sharp objects. The finished size of our 10' x 12' white vinyl tarp is 19'6" x 39'6" after hemming.