Posted by: willowleaf on Nov-01-12 10:02 AM (EST)
Keep your eye out for 50% off sales at Sherwin Williams paint stores. In my area they seem to have one whenever they open a new store or for whatever reason. That's when I get the 20' x 6' canvas tarps -- they are under $10 each during the sales and they sell a nice weight of them. I like cotton canvas because it doesn't break down and get brittle like plastic tarps. If your storage area is damp, you will get some mildew and staining on the canvas, but you can lay it out in the sun and it will kill most of the spores, or you can just wash the tarps in a washing machine with a little bleach.