Helpful Calculations

Definitions:
L = length (ft)
W = width (ft)
D = depth (ft)

Soils

= L X W X D/27 = Yards

Stone

= L X W X D X 170/2000 = Tons
1” =0.083’ (foot)

Aggregates/Gravel Products

1 ton of compacted aggregate/gravel product will cover:
1” thick = 200 sq ft
2” thick = 100 sq ft
3” thick = 66 sq ft
4” thick = 50 sq ft
5” thick = 40 sq ft
6” thick = 33 sq ft
12” thick = 17 sq ft
Compaction can add up to 25% extra material required.

Average Material Weights

Material Lb/cubic foot Lb/Cubic Yard
Granite – boulders, steps, armour stone 168 4536
Gravel, Dry ¼” to 2” 105 2835
Gravel, loose, dry 95 2565
Gravel with sand, natural 120 3240
Gravel, wet 1/4” to 2" 125 3375