How Much #57 Stone for 1,200 Square Feet?
How much #57 stone for 1,200 square feet depends on depth. At 4 inches you need about 14.81 cubic yards, roughly 20.0 tons at 1.35 tons per yard. Going to 6 inches raises it to 30.0 tons.
Volume and tonnage calculator →#57 stone for 1,200 sq ft by depth
| Depth | Cubic yards | Tons | Tons +10% |
|---|---|---|---|
| 2 in | 7.41 | 10.0 | 11.0 |
| 3 in | 11.11 | 15.0 | 16.5 |
| 4 in | 14.81 | 20.0 | 22.0 |
| 6 in | 22.22 | 30.0 | 33.0 |
Working it out
- 1,200 sq ft × (4 ÷ 12) ft = 400.0 cubic feet.
- ÷ 27 = 14.81 cubic yards.
- × 1.35 tons per yard = 20.0 tons.
About #57 stone
#57 stone is a clean crushed stone in roughly the 1/2 to 1 inch range with very few fines. It drains fast, which suits drainage layers and the top of a gravel drive, but it does not pack into a hard crust by itself. Expect the weight to fall in the range of 1.3 to 1.45 tons per yard.
Getting the order right
- 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.
Where #57 stone fits
Works well for:
- French drains and drainage layers
- The top course of a gravel driveway
- Under sheds where water needs to drain away
Poor fit for:
- 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 8x16 area at 2 inches takes about 1.1 tons.
- Weight used here: about 1.35 tons per cubic yard.
Mistakes that throw off the order
- Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
- Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
- Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
- Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
Questions people ask
How many tons of #57 stone for 1,200 square feet?
About 20.0 tons at 4 inches deep.
How many cubic yards of #57 stone for 1,200 square feet?
About 14.81 yards at 4 inches.
How much #57 stone for 1,200 square feet at 2 inches?
About 10.0 tons, or 7.41 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 800 Square Feet?
- How Much #57 Stone for 1,000 Square Feet?
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