Mulch for 150 square feet, by depth
| Depth | Cubic yards | Cubic feet | 2 ft³ bags | 3 ft³ bags |
|---|---|---|---|---|
| 2 in | 0.93 | 25.0 | 13 | 9 |
| 3 in | 1.39 | 37.5 | 19 | 13 |
| 4 in | 1.85 | 50.0 | 25 | 17 |
What 150 square feet looks like
- A square about 12.2 × 12.2 ft.
- A 4 ft wide border that is 38 ft long, or a 3 ft wide border 50 ft long.
- A round bed about 13.8 ft across.
Bulk or bags for 150 ft²?
At 1.39 cubic yards this is around the point where bulk starts to win. 19 bags is a lot of lifting and a lot of packaging, so get a bulk price too. If the delivery fee is modest, bulk is usually cheaper.
Want to change anything else? The calculator above is the full Mulch Calculator: edit any number and the results update instantly.
Tools & materials for this project
As an Amazon Associate we earn from qualifying purchases. These links do not change what you pay.
Frequently asked questions
How many bags of mulch for 150 square feet?
At the usual 3 inch depth you need 19 bags of 2 ft³ (or 13 bags of 3 ft³). At 2 inches it is 13 bags of 2 ft³, and at 4 inches 25 bags.
How many cubic yards of mulch for 150 square feet?
1.39 cubic yards at 3 inches deep, 0.93 at 2 inches and 1.85 at 4 inches. Round up to the next quarter yard when you order.
How deep should I spread mulch over 150 square feet?
Two to three inches is right for most beds. Keep it a few inches back from tree trunks and stems, and top up with an inch or so each year.
Related sizes and guides
Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.