You can also figure around 3400 pounds per yard so the 8 yards would be
27,000 pounds or 13-1/2 tons.

Errol Groff wrote:


volume in cubic feet is the product of the lengths of sides in cubic
feet. So, if you have a rectangular lot that is 20 by 20 by 0.5 foot
(0.5 being the depth of gravel), your volume is 20*20*0.5 = 200 cubic
feet of gravel. A cubic yard is 9 cubic feet, so, in this example, you
would need 200/9 = 22.2 cubic yards of gravel.


A cubic yard is 27 cubic feet. 3*3*3 = 37

Errol: that is **27**


So 200/27 is 8 yards of gravel

Errol Groff