I'm not sure it's a full 1800 sqft per roll. I came up a little short in a 3360 sqft open building with 2 rolls. It's a pretty good, tough ground fabric though and the price is good. It's folded in half on the roll, so you have to unfold it after you roll out your run and cut it off. That's a real pain when it's even the slightest bit breezy outside.