How Many Bags of Mulch Do I Need?
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GardenSays
You need about 25 cu ft of mulch — that's 13 bags (2 cu ft) or 0.93 cubic yards in bulk.
- Volume
- 25 cu ft
- Bulk
- 0.93 cu yd
- Bags
- 13 × 2 cu ft
A 10×10 ft area at 3 inches deep works out to 25 cubic feet. At under a cubic yard, bags are the practical choice: 13 × 2 cu ft bags.
Extensions recommend 2-4 inches of organic mulch: enough to suppress weeds and hold moisture, shallow enough to let water and air through.
Why
- ✓Buying by volume (not guessing by weight) is the only reliable way to fill a bed — moisture makes weight wildly inconsistent.
- ✓Below one cubic yard, delivery fees usually erase the bulk discount.
When this doesn't apply
- →Material settles: expect a raised bed fill to drop 10-20% in the first season; buy a little extra or top up later.
- →Irregular or L-shaped areas: split into rectangles, run each through the calculator, and add the results.
How this was calculated
- 1. Area100 sq ft
10 ft × 10 ft
- 2. Volume25 cu ft
100 sq ft × 3/12 ft deep
- 3. In cubic yards0.93 cu yd
25 cu ft ÷ 27 (bulk delivery is sold by the yard)
- 4. In bags13 bags
25 cu ft ÷ 2 cu ft per bag, rounded up
Data sources
- University of Minnesota Extension — Mulching the garden (checked 2026-07-15)
Community choice
Anonymous, one tap. What did you do?
People also ask
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