How much gravel for a 20 ft × 20 ft?

A 20 ft × 20 ft gravel project is pre-filled below. Adjust any value to match your exact job.

Quick answerA 20 ft × 20 ft gravel project needs 5.19 tons — buy 5.44 to cover waste — about $217.6–$353.6 in materials (US national average, 2026).
Your project
Standard size shown by default. Change any value — the answer recomputes instantly.
You need
5.44tons
Exact need: 5.19 tons · plus 5% waste allowance
Material cost
$217.6–$353.6
Installed (US avg)
$626–$906
Shopping list
Items to buy with quantity and price range
ITEMQTYPRICE RANGE
tons5.44$217.6–$353.6
Estimated material total$217.6–$353.6
Alternative buy formats
  • 3.89 × cubic yards — $136.15–$233.4

20 ft × 20 ft at different depths

20 ft × 20 ft footprint of gravel / crushed stone
DepthYou needBuy (with waste)Material cost
1″1.73 tons1.81 tons$72.4 – $117.65
2″3.46 tons3.63 tons$145.2 – $235.95
3″5.19 tons5.44 tons$217.6 – $353.6
4″6.91 tons7.26 tons$290.4 – $471.9
6″10.37 tons10.89 tons$435.6 – $707.85