... 22oz Waterproof,Rainproof,Mildewproof,UV Protected,Fireproof ISO9001:2000 Canvas Tarps,Cotton Canvas Tarps,Cotton TarpsNOTE: The actual finished size of ... the tarp making process.Usually ships in 25 business days.Canvas Weighs: 16oz, 18oz and 21oz per sq. yard after ... initially have an odor.Canvas tarps are not recommended for hanging as walls, room or space dividers, replacement canopy tops, canopy ...