How Much Crushed Stone for 150 Square Feet?
How much crushed stone for 150 square feet depends on depth. At 4 inches you need about 1.85 cubic yards, roughly 2.6 tons at 1.4 tons per yard. Each inch of depth over 150 square feet adds about 0.46 yards.
Volume and tonnage calculator →Crushed stone for 150 sq ft by depth
| Depth | Cubic yards | Tons | Tons +10% |
|---|---|---|---|
| 2 in | 0.93 | 1.3 | 1.4 |
| 3 in | 1.39 | 1.9 | 2.1 |
| 4 in | 1.85 | 2.6 | 2.9 |
| 6 in | 2.78 | 3.9 | 4.3 |
Working it out
- 150 sq ft × (4 ÷ 12) ft = 50.0 cubic feet.
- ÷ 27 = 1.85 cubic yards.
- × 1.4 tons per yard = 2.6 tons.
About crushed stone
Crushed stone has fractured faces, so the pieces interlock when compacted. That is why it holds a driveway or pad shape better than round stone of the same size. Most suppliers will quote 1.35 to 1.5 tons per yard for this material.
Before the truck comes
- 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.
When to choose crushed stone
Best suited to:
- Driveway top courses and parking pads
- Shed and hot tub bases
- Backfill behind walls when a clean size is used
Poor fit for:
- 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 20x25 area at 2 inches takes about 4.3 tons.
- Weight used here: about 1.4 tons per cubic yard.
Mistakes that throw off the order
- Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
- Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
- 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.
Questions people ask
How many tons of crushed stone for 150 square feet?
About 2.6 tons at 4 inches deep.
How many cubic yards of crushed stone for 150 square feet?
About 1.85 yards at 4 inches.
How much crushed stone for 150 square feet at 2 inches?
About 1.3 tons, or 0.93 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 100 Square Feet?
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