Reference Chart
Volume of Soil Amendments (Cubic Feet) required to amend backfill soils by percentage for various sizes.
| SIZE | 10% | 12% | 20% | 25% | 33% | 50% |
| 1 GAL | .03 | .04 | .06 | .08 | .1 | .2 |
| 5 GAL | .24 | .29 | .5 | .5 | .8 | 1.2 |
| 15 GAL | .5 | .6 | 1 | 1.21 | 1.6 | 2.4 |
| 24" Box | 2 | 2.4 | 4.1 | 5.1 | 6.7 | 10.0 |
| 36" Box | 6.9 | 8.3 | 14 | 17.4 | 23.0 | 34.4 |
| 48" Box | 13.3 | 16.6 | 26.7 | 33.3 | 44.0 | 67.0 |
| 60" Box | 22.1 | 26.5 | 44.2 | 55.3 | 73.0 | 111.0 |
Volume of Bulk Soil Amendments needed to cover 1,000 Square Feet at a specified depth.
| DEPTH (INCHES) | Per 1,000 Sq.Ft. (Cubic Feet) |
Cubic Yards |
| 1/16" | 5.21 | 0.19 |
| 1/8" | 10.42 | 0.39 |
| 3/16" | 15.63 | 0.58 |
| 1/4" | 20.83 | 0.77 |
| 5/16" | 26.04 | 0.96 |
| 3/8" | 31.25 | 1.16 |
| 7/16" | 36.46 | 1.35 |
| 1/2" | 41.67 | 1.54 |
| 9/16" | 46.88 | 1.74 |
| 5/8" | 52.08 | 1.93 |
| 11/16" | 57.29 | 2.12 |
| 3/4" | 62.50 | 2.31 |
| 13/16" | 67.71 | 2.51 |
| 7/8" | 72.92 | 2.70 |
| 15/16" | 78.13 | 2.89 |
| 1" | 83.33 | 3.09 |
| 1.5" | 125.00 | 4.63 |
| 2.0 | 166.66 | 6.18 |
| 3.0 | 250.00 | 9.26 |