Coverage by depth
Area (sq ft) = cubic feet ÷ (depth in inches ÷ 12). One cubic yard is 27 cubic feet.
| Depth | 1 ton covers (sq ft) | 1 cu yd covers (sq ft) | 1 ton covers (m²) |
|---|---|---|---|
| 1 in | 316 | 324 | 29.3 |
| 2 in | 158 | 162 | 14.7 |
| 3 in | 105 | 108 | 9.8 |
| 4 in | 79 | 81 | 7.3 |
| 6 in | 53 | 54 | 4.9 |
| 8 in | 39 | 40 | 3.7 |
| 12 in | 26 | 27 | 2.4 |
Ton figures use 1.03 tons per cubic yard of fill dirt.
Plan for settling
Set the depth to the low spot you are filling. Loose material settles once it is walked on or compacted, so order a little more than the bare volume. Rochester Concrete Products' install guide adds 10% for compaction and uneven ground.
Common questions
How much does a ton of fill dirt cover at 2 inches?
About 158 sq ft.
How much does a yard of fill dirt cover at 3 inches?
About 108 sq ft. One cubic yard covers 108 sq ft at 3 inches whatever the material.
How deep should fill dirt be?
Set the depth to the low spot you are filling.
Sources
- https://www.engineeringtoolbox.com/dirt-mud-densities-d_1727.html
- https://rochestercp.com/resources/installation-manuals/installation-manual-vintage-6.pdf