How much mulch do I need for a 10×20 bed?
≈ 25 bags (2 cu ft)
That’s about 1.85 cubic yards to cover a 10×20 bed at a 3″ depth.
A 10 ft × 20 ft bed is 200 square feet. At a 3-inch mulch depth (the sweet spot for weed control + moisture), that’s 50.0 cubic feet — about 25 standard 2-cubic-foot bags, or 1.85 cubic yards in bulk.
| Bed area | 200 sq ft |
| Depth | 3 in |
| Volume | 1.85 cu yd (50.0 cu ft) |
| 2-cu-ft bags | 25 bags |
Bulk (by the yard) is usually cheaper above ~10 bags. Refresh 1–2″ yearly rather than re-mulching full depth.
Change the size → open the mulch calculatorGrab the supplies
Don’t forget — your supply list
Everything a job like this needs. Grab it in one trip.
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