About 300 sq ft at a 3-inch depth, or roughly 240 sq ft at 4 inches. One cubic yard covers ~100 sq ft at 3 inches and ~80 sq ft at 4, so three yards simply triples those numbers. Pick the depth first — topdressing needs far less than building a new seedbed — and the coverage falls out of the table below.
3 yards of loam, four ways
| 1 inch (heavy topdress) | ~972 sq ft |
| 2 inches | ~486 sq ft |
| 3 inches | ~300 sq ft |
| 4 inches (new lawn) | ~240 sq ft |
Three yards rides comfortably in one truck, since loam caps at 6 per load. Order screened loam, and check your footage with the material calculator.
