Mulch for a 3×15 area
0.42 cubic yards (6 bags)
of mulch for 45 sq ft at 3 inches deep: 11.3 cu ft, or 6 bags of 2 cu ft.
A 3×15 foot area is 45 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 3×15 by depth
| Depth | Cubic yards | Cubic feet | 2 cu ft bags | 3 cu ft bags |
|---|---|---|---|---|
| 1 in | 0.14 | 3.8 | 2 | 2 |
| 2 in | 0.28 | 7.5 | 4 | 3 |
| 3 in | 0.42 | 11.3 | 6 | 4 |
| 4 in | 0.56 | 15 | 8 | 5 |
| 6 in | 0.83 | 22.5 | 12 | 8 |
How it’s worked out
- 15 × 3 = 45 sq ft.
- 45 × 3 in ÷ 12 = 11.25 cu ft.
- 11.25 ÷ 27 = 0.417 cu yd, or 11.25 ÷ 2 = 6 bags of 2 cu ft (rounded up).
Change the numbers
Other bed sizes
- 3×12 area
- 2×15 area
- 3×10 area
- 3×20 area
- 4×15 area
- 3×8 area
- 3×6 area
- 3×5 area
- 3×25 area
- 5×15 area
- 3×4 area
- 3×3 area
Questions
- How much mulch do I need for a 3×15 area?
- 0.42 cubic yards at 3 inches deep, or 6 bags of 2 cu ft. At 2 inches it is 0.28 yards (4 bags).
- How many bags of mulch for 3×15?
- 6 bags of 2 cu ft or 4 bags of 3 cu ft at 3 inches deep.
- Is bulk or bagged mulch cheaper for 3×15?
- Bagged: about $24 for 6 bags. Bulk: about $40 for 0.42 yards, plus delivery. Bulk usually wins above 2 or 3 yards.