How Much Crusher Run for a 18x120 Driveway?
How much crusher run for a 18x120 driveway is a quick volume problem. 2,160 square feet at 4 inches comes to 26.67 cubic yards. Crusher run usually weighs about 1.5 to 1.7 compacted tons per cubic yard, so plan on roughly 41.3 tons.
Volume and tonnage calculator →The math for a 18x120 driveway
- Area: 18 × 120 = 2,160 sq ft.
- Depth in feet: 4 ÷ 12 = 0.333 ft.
- Cubic feet: 2,160 × 0.333 = 720.0 cu ft.
- Cubic yards: ÷ 27 = 26.67 yd³.
- Tons: × 1.55 = 41.3 tons.
The volume and tonnage calculator does this for any size.
Crusher run needed by depth
| Depth | Cubic yards | Tons (approx.) | Tons +10% |
|---|---|---|---|
| 3 in | 20.00 | 31.0 | 34.1 |
| 4 in | 26.67 | 41.3 | 45.5 |
| 6 in | 40.00 | 62.0 | 68.2 |
| 8 in | 53.33 | 82.7 | 90.9 |
About crusher run
The fines in crusher run fill the gaps between stones, so it weighs more per yard than clean stone once compacted. Plan on rolling or plate-compacting it in lifts. If the yard sells by the cubic yard instead of the ton, use the cubic-yard column directly.
Preparing the driveway
Strip sod and soft topsoil, grade for drainage and compact the subgrade before any stone goes down. Gravel drives last longer with a compacted base layer under the top stone and a slight crown so water runs off. For car and truck traffic, the depths in the table above are a reasonable starting range.
Ordering tips
- Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
- Delivery size. 45.5 tons may take more than one typical dump truck load; small loads may carry a delivery fee. See how many tons of gravel in a dump truck.
- Bulk vs bags. At this size bulk delivery is usually the practical choice.
- Where it drops. Have the truck dump as close to the driveway as firm ground allows.
Where crusher run fits
Best suited to:
- Base under asphalt, pavers or concrete
- Gravel drives that need a firm, packed surface
- Shed pads and equipment pads
Less suited to:
- Drainage layers, since the fines slow water
- Decorative beds
- Spots where you want water to soak straight through
Quick reference numbers
- Per inch over 100 sq ft: about 0.48 tons of crusher run (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.8 tons.
- Another size for comparison: a 15x30 area at 3 inches takes about 6.5 tons.
- Weight used here: about 1.55 tons per cubic yard.
Common estimating mistakes
- Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
- Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
- Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
- 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 crusher run for a 18x120 driveway?
About 41.3 tons at 4 inches deep, or 45.5 tons with 10 percent extra.
How many cubic yards is a 18x120 driveway at 4 inches?
About 26.67 cubic yards.
How much does a cubic yard of crusher run weigh?
Usually around 1.5 to 1.7 compacted tons, depending on stone size, fines and moisture.
How deep should crusher run be for a driveway?
The table above shows 3 to 8 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.
How many square feet is 18x120?
2,160 square feet.
Related guides
- Crushed Stone vs Gravel: Differences and Best Uses
- Tons to Cubic Yards for Gravel: Conversion Chart
- How Many Tons of Gravel in a Dump Truck? Loads and Coverage
- How Much Does a Ton of Gravel Cover? Depth Chart
- How Much Crusher Run for a 18x90 Driveway?
- How Much Crusher Run for a 18x100 Driveway?
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