Christinab

It is strong, and doubled up, would offer you extra strength.
Appropriate usage is even more crucial than size, though. You will often discover this type of tarp in usage in the painting and decorating market due to its absorbent nature.

Probably the least pricey would be the laundry basket.

They are developed to be hung from the roofing system of your tent so they will not tip over while you roll around. The actual doing what it takes, often does not.