Plan your topsoil delivery
Measure the area to cover and the depth of new topsoil you want to add. Calculate each section separately if depths vary. For a top-up, enter only the added layer rather than the full depth of the existing soil.
Length (ft) × width (ft) × depth (in) ÷ 324 = cubic yards
In metric units: length (m) × width (m) × depth (cm) ÷ 100 = cubic meters.
A worked example
A 20 ft × 12 ft area at 3 in deep needs 2.22 cubic yards. At 1,300 kg/m³, the estimated weight is 2.4 US tons or 2.2 metric tonnes, before extra.
Topsoil depth and coverage
Use the finished depth you want to achieve; settling and soil type can change the delivered amount needed.
| Project or depth | Planning reference |
|---|---|
| Lawn topdressing | 1–2 in |
| New garden bed | 4–6 in |
| 1 cubic yard at 3 in | about 108 sq ft |
| 1 cubic yard at 6 in | about 54 sq ft |
Before you order
Screened topsoil, soil blends and wet soil can have different bulk densities. The default is a planning assumption, not a product specification. Settling is not calculated automatically; discuss loose delivery volume and final depth with your supplier.