100 sq ft: mulch by depth
| Depth | Cu ft | Cu yd | 2 cu ft bags |
|---|
| 1″ | 8.3 | 0.31 | 5 |
| 2″ | 16.7 | 0.62 | 9 |
| 3″ | 25.0 | 0.93 | 13 |
| 4″ | 33.3 | 1.23 | 17 |
Worked example
100 sq ft × 3 in ÷ 12 = 25.0 cu ft = 0.93 cubic yards. In 2 cu ft bags that is 13 bags; in 3 cu ft bags, 9. Bags are convenient at this volume.
Frequently asked questions
How many bags of mulch for 100 sq ft?
13 bags of 2 cu ft at 3 inches deep.