Serving you since 1928

Geo Grid

Advanced Soil Reinforcement Grid for Allan Block Walls up to 6′ high.


Advanced Soil Reinforcement Grid for Allan Block Walls up to 6′ high. This reinforcement grid is a high strength polyester mesh geogrid that is coated with a black protective film. It is used to give added strength to the retaining wall by reinforcing the soil behind it. This light duty geogrid is manufactured by a world leader in geosynthetics, Strata Systems, and is distributed exclusively through the Allan Block dealer network

Calculating Material


1,728 cubic inches = 1 cubic foot
27 cubic feet = 1 cubic yard
7.5 cubic yards = 1 unit
One 5 gallon bucket = 0.67 cubic foot


144 square inches = 1 square foot
9 square feet = 1 square yard
43,560 square feet = 1 acre

How much area will a cubic yard cover at a given depth?

At 1/2″ deep, 640 square feet
At 1″ deep, 324 square feet
At 2″ deep, 162 square feet
At 3″ deep, 108 square feet
At 4″ deep, 81 square feet
At 6″ deep, 54 square feet
At 12″ deep, 27 square feet

Material weights

Please note weights can vary due to moisture content.
Bark Mulch: 500-800 lbs/cubic yard
Compost: 800-1,100 lbs/cubic yard
Soils: 1,300-2,000 lbs/cubic yard
Gravel: 2,000-2,500 lbs/cubic yard
Sand: 2,000-2,300 lbs/cubic yard


Volume of a Rectangle


Volume of a circle


Volume of a Triangle

Our estimate planning tools are provided for your reference and convenience. Highway Fuel is happy to help, please call us at 503-363-6444 or email for assistance.