How Much Crushed Stone for 1,200 Square Feet?
How much crushed stone for 1,200 square feet depends on depth. At 4 inches you need about 14.81 cubic yards, roughly 20.7 tons at 1.4 tons per yard. Going to 6 inches raises it to 31.1 tons.
Volume and tonnage calculator →Crushed stone for 1,200 sq ft by depth
| Depth | Cubic yards | Tons | Tons +10% |
|---|---|---|---|
| 2 in | 7.41 | 10.4 | 11.4 |
| 3 in | 11.11 | 15.6 | 17.1 |
| 4 in | 14.81 | 20.7 | 22.8 |
| 6 in | 22.22 | 31.1 | 34.2 |
Working it out
- 1,200 sq ft × (4 ÷ 12) ft = 400.0 cubic feet.
- ÷ 27 = 14.81 cubic yards.
- × 1.4 tons per yard = 20.7 tons.
About crushed stone
Most quarries sell crushed stone by a size number or a screen size. Clean crushed stone drains well; stone with fines packs harder but sheds water more slowly. Typical weight: 1.35 to 1.5 tons per cubic 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 crushed stone fits
Good uses:
- Driveway top courses and parking pads
- Shed and hot tub bases
- Backfill behind walls when a clean size is used
Less suited to:
- Barefoot areas, since angular stone is rough
- Play areas
- Places that need a smooth rolling surface for wheels
Quick reference numbers
- Per inch over 100 sq ft: about 0.43 tons of crushed stone (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.3 tons.
- Another size for comparison: a 14x28 area at 3 inches takes about 5.1 tons.
- Weight used here: about 1.4 tons per cubic yard.
Common estimating mistakes
- Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
- Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
- Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
- Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
Questions people ask
How many tons of crushed stone for 1,200 square feet?
About 20.7 tons at 4 inches deep.
How many cubic yards of crushed stone for 1,200 square feet?
About 14.81 yards at 4 inches.
How much crushed stone for 1,200 square feet at 2 inches?
About 10.4 tons, or 7.41 cubic yards.
How much does a yard of crushed stone weigh?
About 1.35 to 1.5 tons.
Should I add extra?
Yes, about 10 percent is a common allowance.
Related guides
- How Much Does a Ton of Crushed Stone Cover?
- Tons to Cubic Yards for Gravel: Conversion Chart
- How Much Does a Ton of Gravel Cover? Depth Chart
- How Much Crushed Stone for 800 Square Feet?
- How Much Crushed Stone for 1,000 Square Feet?
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