Mulch for a 3×30 area
0.83 cubic yards (12 bags)
of mulch for 90 sq ft at 3 inches deep: 22.5 cu ft, or 12 bags of 2 cu ft.
A 3×30 foot area is 90 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 3×30 by depth
| Depth | Cubic yards | Cubic feet | 2 cu ft bags | 3 cu ft bags |
|---|---|---|---|---|
| 1 in | 0.28 | 7.5 | 4 | 3 |
| 2 in | 0.56 | 15 | 8 | 5 |
| 3 in | 0.83 | 22.5 | 12 | 8 |
| 4 in | 1.11 | 30 | 15 | 10 |
| 6 in | 1.67 | 45 | 23 | 15 |
How it’s worked out
- 30 × 3 = 90 sq ft.
- 90 × 3 in ÷ 12 = 22.5 cu ft.
- 22.5 ÷ 27 = 0.833 cu yd, or 22.5 ÷ 2 = 12 bags of 2 cu ft (rounded up).
Change the numbers
Other bed sizes
- 3×25 area
- 2×30 area
- 3×20 area
- 3×40 area
- 4×30 area
- 3×15 area
- 3×12 area
- 3×10 area
- 3×50 area
- 5×30 area
- 3×8 area
- 3×6 area
Questions
- How much mulch do I need for a 3×30 area?
- 0.83 cubic yards at 3 inches deep, or 12 bags of 2 cu ft. At 2 inches it is 0.56 yards (8 bags).
- How many bags of mulch for 3×30?
- 12 bags of 2 cu ft or 8 bags of 3 cu ft at 3 inches deep.
- Is bulk or bagged mulch cheaper for 3×30?
- Bagged: about $48 for 12 bags. Bulk: about $40 for 0.83 yards, plus delivery. Bulk usually wins above 2 or 3 yards.