Mulch for a 3×12 area
0.33 cubic yards (5 bags)
of mulch for 36 sq ft at 3 inches deep: 9 cu ft, or 5 bags of 2 cu ft.
A 3×12 foot area is 36 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 3×12 by depth
| Depth | Cubic yards | Cubic feet | 2 cu ft bags | 3 cu ft bags |
|---|---|---|---|---|
| 1 in | 0.11 | 3 | 2 | 1 |
| 2 in | 0.22 | 6 | 3 | 2 |
| 3 in | 0.33 | 9 | 5 | 3 |
| 4 in | 0.44 | 12 | 6 | 4 |
| 6 in | 0.67 | 18 | 9 | 6 |
How it’s worked out
- 12 × 3 = 36 sq ft.
- 36 × 3 in ÷ 12 = 9 cu ft.
- 9 ÷ 27 = 0.333 cu yd, or 9 ÷ 2 = 5 bags of 2 cu ft (rounded up).
Change the numbers
Other bed sizes
- 3×10 area
- 3×15 area
- 2×12 area
- 3×8 area
- 4×12 area
- 3×6 area
- 3×5 area
- 3×4 area
- 3×20 area
- 5×12 area
- 3×3 area
- 2×3 area
Questions
- How much mulch do I need for a 3×12 area?
- 0.33 cubic yards at 3 inches deep, or 5 bags of 2 cu ft. At 2 inches it is 0.22 yards (3 bags).
- How many bags of mulch for 3×12?
- 5 bags of 2 cu ft or 3 bags of 3 cu ft at 3 inches deep.
- Is bulk or bagged mulch cheaper for 3×12?
- Bagged: about $20 for 5 bags. Bulk: about $40 for 0.33 yards, plus delivery. Bulk usually wins above 2 or 3 yards.