Mulch for a 8×40 area
2.96 cubic yards (40 bags)
of mulch for 320 sq ft at 3 inches deep: 80 cu ft, or 40 bags of 2 cu ft.
A 8×40 foot area is 320 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 8×40 by depth
| Depth | Cubic yards | Cubic feet | 2 cu ft bags | 3 cu ft bags |
|---|---|---|---|---|
| 1 in | 0.99 | 26.7 | 14 | 9 |
| 2 in | 1.98 | 53.3 | 27 | 18 |
| 3 in | 2.96 | 80 | 40 | 27 |
| 4 in | 3.95 | 106.7 | 54 | 36 |
| 6 in | 5.93 | 160 | 80 | 54 |
How it’s worked out
- 40 × 8 = 320 sq ft.
- 320 × 3 in ÷ 12 = 80 cu ft.
- 80 ÷ 27 = 2.963 cu yd, or 80 ÷ 2 = 40 bags of 2 cu ft (rounded up).
Change the numbers
Other bed sizes
- 6×40 area
- 8×30 area
- 8×50 area
- 10×40 area
- 5×40 area
- 8×25 area
- 4×40 area
- 8×20 area
- 12×40 area
- 3×40 area
- 8×15 area
- 8×12 area
Questions
- How much mulch do I need for a 8×40 area?
- 2.96 cubic yards at 3 inches deep, or 40 bags of 2 cu ft. At 2 inches it is 1.98 yards (27 bags).
- How many bags of mulch for 8×40?
- 40 bags of 2 cu ft or 27 bags of 3 cu ft at 3 inches deep.
- Is bulk or bagged mulch cheaper for 8×40?
- Bagged: about $160 for 40 bags. Bulk: about $119 for 2.96 yards, plus delivery. Bulk usually wins above 2 or 3 yards.