[Mrprez]

Originally Posted by lrvalley

I'm not sure where you're getting your calculations from, but every resource I've checked shows that a cubic yard of rock is approximately 2600 lbs, and will cover about 100 square feet at 3" deep. Thus to get 3" deep on 3000 sq ft, it would take 30 yards. I got 31. I know, because I ordered the rock and had it delivered and paid for it. That way, I knew what I was getting, and only paid the landscaper for the labor to install.

Must be the new math.