Mulch for a 15×30 area
4.17 cubic yards (57 bags)
of mulch for 450 sq ft at 3 inches deep: 112.5 cu ft, or 57 bags of 2 cu ft.
A 15×30 foot area is 450 square feet. Most garden beds need 2 to 3 inches of mulch; a fresh bed or a weedy one benefits from 3 to 4 inches.
Mulch for 15×30 by depth
| Depth | Cubic yards | Cubic feet | 2 cu ft bags | 3 cu ft bags |
|---|---|---|---|---|
| 1 in | 1.39 | 37.5 | 19 | 13 |
| 2 in | 2.78 | 75 | 38 | 25 |
| 3 in | 4.17 | 112.5 | 57 | 38 |
| 4 in | 5.56 | 150 | 75 | 50 |
| 6 in | 8.33 | 225 | 113 | 75 |
How it’s worked out
- 30 × 15 = 450 sq ft.
- 450 × 3 in ÷ 12 = 112.5 cu ft.
- 112.5 ÷ 27 = 4.167 cu yd, or 112.5 ÷ 2 = 57 bags of 2 cu ft (rounded up).
Change the numbers
Other bed sizes
- 15×25 area
- 12×30 area
- 10×30 area
- 15×20 area
- 15×40 area
- 20×30 area
- 8×30 area
- 15×15 area
- 6×30 area
- 12×15 area
- 5×30 area
- 10×15 area
Questions
- How much mulch do I need for a 15×30 area?
- 4.17 cubic yards at 3 inches deep, or 57 bags of 2 cu ft. At 2 inches it is 2.78 yards (38 bags).
- How many bags of mulch for 15×30?
- 57 bags of 2 cu ft or 38 bags of 3 cu ft at 3 inches deep.
- Is bulk or bagged mulch cheaper for 15×30?
- Bagged: about $228 for 57 bags. Bulk: about $167 for 4.17 yards, plus delivery. Bulk usually wins above 2 or 3 yards.