Calculation Tips
Armour Stone Calculation
Length X Height X Depth = _______/12 is the amount of rock needed in tons for retaining walls.
Wall is 50 feet long stacked two high (18" rock) = 36 inches at a depth of 24 inches, then you will need: 25 tons of rock (50X3X2/12=25 tons).
Soil and Mulch Calculation
Length X Height X Depth = _______/27 is the amount of yards of product you need for you project.
Aggregates Calculation for Compacted Material
1 ton of compacted aggregate will cover:
1" thick = 200 square feet 2" thick = 100 square feet
3" thick = 75 square feet 4" thick = 50 square feet
5" thick = 38 square feet 6" thick = 25 square feet
2" thick = 100 square feet
4" thick = 50 square feet
6" thick = 25 square feet