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4000 sq ft: mulch by depth
| Depth | Cu ft | Cu yd | 2 cu ft bags |
|---|---|---|---|
| 1″ | 333.3 | 12.35 | 167 |
| 2″ | 666.7 | 24.69 | 334 |
| 3″ | 1,000.0 | 37.04 | 500 |
| 4″ | 1,333.3 | 49.38 | 667 |
Worked example
4000 sq ft × 3 in ÷ 12 = 1,000.0 cu ft = 37.04 cubic yards. In 2 cu ft bags that is 500 bags; in 3 cu ft bags, 334. Bulk delivery by the yard is usually cheaper at this volume; compare local prices.
Frequently asked questions
How many bags of mulch for 4000 sq ft?
500 bags of 2 cu ft at 3 inches deep.