How much topsoil for a 10×10 garden bed?
A 10 × 10 ft garden bed built up 6 inches holds 1.85 cubic yards (50 cubic feet) of settled soil. With 20% for settling, buy 2.22 cubic yards of topsoil (60 cubic feet), about 2.67 tons at average moisture. In 0.75 cu ft bags that is 80 bags.
How to work it out
- 10 ft × 10 ft = 100 sq ft
- 100 sq ft × 6 in ÷ 12 = 50 cu ft ÷ 27 = 1.85 cu yd
- 1.85 cu yd + 20% for settling = 2.22 cu yd
- 2.22 cu yd × 1.2 tons/cu yd ≈ 2.67 tons
- Bulk: 2.22 cu yd rounded up to the next ½ cu yd = 2.5 cu yd
Six inches of new soil on top of poor ground gives vegetables a real root zone, especially if you loosen the ground underneath first. A hundred square feet is a typical first vegetable plot: room for a few tomatoes, peppers, beans and a row of salad greens with paths between them.
Adjust for your project
More options: Settling · Moisture · Bag price …
- Approx. weight
- 2.67 tons (5,333 lb)
- Bags to buy
- 80 bags · 0.75 cu ft bag
- If you order bulk, ask for
- 2.5 cu yd
- That many bags is a lot of carrying. Bulk topsoil is usually far cheaper at this volume — ask about delivery and whether it is screened.
- Hauling it yourself? At roughly 1,500 lb per load — a typical half-ton pickup payload; check the sticker in your door jamb — that is about 4 trips. Soil fills the payload long before it fills the bed.
- Spread it about 20% deeper than the finished depth: 6 in firmed is about 7.2 in loose. Water or roll it, then fill any dips before seeding.
Bags for a 10×10 bed 6 in deep, by bag size
| Bag size | Bags to buy |
|---|---|
| 0.75 cu ft | 80 bags |
| 1 cu ft | 60 bags |
| 1.5 cu ft | 40 bags |
| 2 cu ft | 30 bags |
What to know about a 10×10 garden bed 6 inches deep
The number assumes straight sides. If the new soil simply sits on the lawn with sloped edges, you lose depth around the outside; either frame it with timbers or edging, or make the mound a little wider than 10 ft. Strip or smother the grass first: soil piled on live turf lets the grass grow straight back through.
At over two yards, bags stop making sense. Eighty bags of 0.75 cu ft is two and a half tons of lifting, loading and unloading, and the calculator puts a pickup at about four trips if you haul bulk soil yourself. Most landscape yards will sell two and a half yards, and many deliver.
Fork or till the existing ground before spreading, then mix the bottom couple of inches of the new soil into it. A sharp line between loose topsoil and hard clay stops roots and holds water on top of it.
Garden soil does better with organic matter blended in. Two inches of compost over the same 100 sq ft is its own calculation: How much compost for a 100 sq ft vegetable garden. If you only need 4 inches of fill rather than 6, How many cubic yards of dirt for a 10×10 area, 4 inches deep has that figure. Seeding a whole lawn instead? See How much topsoil for a new 1,000 sq ft lawn.
Different size? Use the full Topsoil Calculator.
What you’ll need
- Square-point transfer shovelBudget price
Flat blade for scooping gravel, soil and sand off a driveway pile — a round shovel leaves too much behind.
See options on Amazon (opens in a new tab) - Wheelbarrow (6 cu ft class)Mid-range price
Most home wheelbarrows hold 4–6 cubic feet — so a cubic yard of mulch is five or six trips. Two wheels are steadier on soft ground.
See options on Amazon (opens in a new tab) - Soil test kitBudget price
A quick read on pH and nutrients. For detailed results, many state extension labs offer inexpensive mail-in tests.
See options on Amazon (opens in a new tab)
As an Amazon Associate we earn from qualifying purchases. Links to products are affiliate links — they cost you nothing extra and help keep these calculators free.
Frequently asked questions
How much topsoil for a 10×10 bed only 4 inches deep?
About 1.48 cubic yards (54 bags of 0.75 cu ft), roughly 1.78 tons. Four inches is enough over ground you have dug and loosened.
How much topsoil to fill a 10×10 area a foot deep?
About 4.44 cubic yards, roughly 5.33 tons at average moisture. That is a small dump-truck delivery, not a pickup load.
How many 1.5 cu ft bags of topsoil for a 10×10 bed 6 inches deep?
40 bags of 1.5 cu ft for 2.22 cubic yards. Bigger bags halve the count but not the weight you lift.
Other common sizes
- How much topsoil for a new 1,000 sq ft lawn — 14.8 cu yd
- How much topsoil for 50 m² at 10 cm — 6 m³
Sources
- Penn State Extension: Lawn Establishment (opens in a new tab) — A minimum of 4–6 in (firmed) of good topsoil for new turf; blend about 2 in into the subsoil.
- NMSU Extension Guide H-509: Turfgrass Establishment (opens in a new tab) — Add topsoil to a total depth of 4–6 in after firming; water to settle before fine grading.
- Harbor Soils — How much topsoil do I need? (opens in a new tab) — New topsoil typically settles 10–15% in the first season; topdress established lawns 1/4–1/2 in.
- NIST Handbook 44, Appendix C: General Tables of Units of Measurement (opens in a new tab) — 1 cubic yard = 27 cubic feet.
- Gravel Monkey — How many tons of gravel in a dump truck? (opens in a new tab) — Typical payloads: single-axle about 6–10 tons, tandem 12–16, tri-axle 18–25; gravel hits the weight limit before the bed is full.