are the most durable tarps on the market. They are used in several Industries; including the trucking, roofing, waste removal, and construction and have many Industrial applications. Vinyl tarps come in a range of weights yo include; 10, 12, 14, 16, 18, 22 and 40 ounces per square yard. The standard in most Industries is 18 oz. at least for the trucking and construction Industries. All vinyl tarps have welded seams at 5 or 6 feet, depending on the vinyl manufacturer. Vinyl tarps have finished edges with webbing OR have a triple rolled hems. Triple rolled hems is 3 thicknesses of the fabric. All hems come standard with #3 Brass Spur Grommets every 24" apart, unless stated otherwise. All vinyl tarps are manufactured to order and take approximately 10 business days to manufacture.