18'x20' Canvas Tarp 21 oz canvas ® is the first to

® is the first to introduce polyester canvas tarps to the market

Please note that the finished size of canvas tarps is approx

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Triple thick hems and double stitched seams

ice will form and ice will expand

18'x20' Canvas Tarp 21 oz canvas ® is the first toTarp Supply Inc.'s Heavy Duty 21 oz Canvas Tarp is the strongest canvas tarp that we offer. It is thus heavier than the 16 oz (colors available: green, mustard tan, brown, olive drab) and 18 oz canvas tarps (colors available: mustard tan and olive drab). Treated canvas is designed for outdoor use as the treatment gives off an odor and may leave stains residue including when used in direct contact with other products. Specifications 100% woven duck