Tyvek is not just for houses these days. It's very popular in the outdoor world as well - very light, tough, waterproof - and washable. Use it for a superlight but strong footprint for your tent; a ground cloth under your tarp, or create your own lightweight shelter of any shape or size. Use a leftover piece as a gear mat in front of your tent, or a back-country seat cover or table mat. We sell a lot of it for every imaginable use. Tip - throw it in your washer without detergent to make it more pliable and quieter - won't hurt its effectiveness.

Our Tyvek is on a 9 foot long roll, so one linear foot off of this roll gets you a piece 1' x 9', which is nine square feet (one sq. yard), weighing in at only 1.9 ounces. That said, a 1' wide piece isn't going to be of much use. We sell it for $3 per linear foot - if you want a 3'x9' piece for example, just update the quantity to '3' in your shopping cart - that would be about right as a base to cut down further for a 1-man tent. If you want something to go under a 6-man tent, a 9' x 9' piece would be about ideal, so change the quantity to '9'.  If you are using it as a footprint for your tent, make sure none of it sticks out beyond the outside edge of the tent - it should all be out of sight under the tent so rain doesn't pool on it.