How Much Mulch for a 5×20 bed?
This calculator is pre-filled to estimate the mulch for a 5×20 bed. Change any field to match your project, and enter your local price for a precise cost.
Mulch calculator
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How to estimate mulch
- 2-3 inches suppresses weeds and holds moisture without smothering roots. Keep mulch off plant stems and trunks.
- One cubic yard equals about 13.5 bags of 2 cu ft mulch and covers ~100 sq ft at 3 inches.
- Bulk delivery is cheaper than bags once you need more than ~10-15 bags.
Frequently asked questions
How many bags of mulch in a cubic yard?
About 13.5 bags of the common 2 cubic foot size.
How deep should mulch be?
2-3 inches for most beds. Refresh annually to keep it near 3 inches.