30'x40' Canvas Tarp 18 oz

Canvas Tarps - Heavy Duty Cotton Canvas Tarp 18 oz Per Square Yard - Heavy Duty Thread Gage  100% Duck cotton canvas Double-stitched sides for extra strength 12 oz before treatment, 18 oz after treatment Silicon-treated for water, mildew, and weather resistance Available in brown, green, olive drab, and tan Heavy-duty brass rust-resistant grommets approx. every 24 inches Please contact us for any other sizes Please note that the finished size of canvas tarps is approx. 6"-9" or 5-7% smaller than the listed size after the edges are folded over and hemmed.