Coverage Guide
Below is a guide that will aid you in estimating the number of forty pound bags you will need per square foot. The actual number of bags needed will depend on the thickness you choose.
Coverage S.F. 2" 3" 4" 5"
5 x 10 50 16 25 33 42
5 x 20 100 33 50 66 83
10 x 10 100 33 50 66 83
10 x 20 200 66 100 133 166
Other, Multiply by feet   .333 .500 .667 .833

Bulk Stone
Below is a coverage guide per 1 ton of product.
Thickness Coverage (SQ FT)
2" 146
3" 97
4" 73