How Much #57 Stone for 4,000 Square Feet?
How much #57 stone for 4,000 square feet depends on depth. At 4 inches you need about 49.38 cubic yards, roughly 66.7 tons at 1.35 tons per yard. Each inch of depth over 4,000 square feet adds about 12.35 yards.
Volume and tonnage calculator →#57 stone for 4,000 sq ft by depth
| Depth | Cubic yards | Tons | Tons +10% |
|---|---|---|---|
| 2 in | 24.69 | 33.3 | 36.7 |
| 3 in | 37.04 | 50.0 | 55.0 |
| 4 in | 49.38 | 66.7 | 73.3 |
| 6 in | 74.07 | 100.0 | 110.0 |
Working it out
- 4,000 sq ft × (4 ÷ 12) ft = 1,333.3 cubic feet.
- ÷ 27 = 49.38 cubic yards.
- × 1.35 tons per yard = 66.7 tons.
About #57 stone
Since #57 is washed and open-graded, it moves a little underfoot. Many installers put it over a compacted base of a dense-graded stone rather than straight on soil. Most suppliers will quote 1.3 to 1.45 tons per yard for this material.
Ordering checklist
- Measure odd shapes in pieces. Split curves and L-shapes into rectangles and add them.
- Add a margin. About 10 percent covers compaction and low spots.
- Bulk or bags. Bulk delivery is the practical choice here.
- Prep first. Remove sod, compact the subgrade and set edging before the stone arrives.
Use the volume and tonnage calculator for any other size.
Good and poor uses for #57 stone
Good uses:
- French drains and drainage layers
- The top course of a gravel driveway
- Under sheds where water needs to drain away
Less suited to:
- A standalone base, since it does not pack hard without fines
- Paver setting beds
- Walk paths meant for strollers or wheelchairs
Quick reference numbers
- Per inch over 100 sq ft: about 0.42 tons of #57 stone (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.2 tons.
- Another size for comparison: a 20x25 area at 4 inches takes about 8.3 tons.
- Weight used here: about 1.35 tons per cubic yard.
Common estimating mistakes
- Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
- Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
- Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
- Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
Questions people ask
How many tons of #57 stone for 4,000 square feet?
About 66.7 tons at 4 inches deep.
How many cubic yards of #57 stone for 4,000 square feet?
About 49.38 yards at 4 inches.
How much #57 stone for 4,000 square feet at 2 inches?
About 33.3 tons, or 24.69 cubic yards.
How much does a yard of #57 stone weigh?
About 1.3 to 1.45 tons.
Should I add extra?
Yes, about 10 percent is a common allowance.
Related guides
- Number 57 Stone: Size, Weight, Uses, and Coverage
- Tons to Cubic Yards for Gravel: Conversion Chart
- How Much Does a Ton of Gravel Cover? Depth Chart
- How Much #57 Stone for 3,000 Square Feet?
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