How Much Do I Need?

Divide your total square footage by the number beside your desired depth and this will give you the approximate number of cubic yards of material that you will need.

Don’t want to do the math?  Here’s a convenient link!!

Cubic Yards Calculator

Desired Depth — Divide By                       Area of a Circle: r x r x 3.14

1″ ———————— 324                                                              r is Radius which is length from
2″ ———————— 162                                                              center of circle to the outside.
3″ ———————— 108                                                              This will determine your square
4″ ———————— 81                                                                footage for a circle to use in
5″ ———————— 64.8                                                             this formula.
6″ ———————— 54
7″ ———————— 46.3
8″ ———————— 40.5
9″ ———————— 36
10″ ———————- 32.4
11″ ———————- 29.5
12″ ———————- 27
13″ ——————— 24.9
14″ ——————— 23
15″ ——————— 21.6