Planning result
A 10x20 driveway layer at 4 inches deep uses about 2.47 cubic yards before compaction allowance. With 15% added for compaction and settling, the planning amount is about 2.84 cubic yards, usually rounded to 3 cubic yards.
Assumptions
| Driveway size | 10 ft by 20 ft. |
|---|---|
| Layer depth | 4 inches, converted to 0.333 ft. |
| Allowance | 15% for compaction and settling. |
| Unit | Cubic yards for volume planning. |
Calculation
| Step | Result | Formula |
|---|---|---|
| Area | 200 sq ft | 10 x 20 |
| Volume | 66.7 cubic ft | 200 x 0.333 |
| Cubic yards | 2.47 yd3 | 66.7 / 27 |
| With allowance | 2.84 yd3 | 2.47 x 1.15 |
| Practical order | 3 yd3 | Round for delivery planning |
Supplier units may differ
Many suppliers sell by ton. Convert from cubic yards to tons using the material density supplied by the yard.
Layer design matters
Driveways often need base and top layers. Estimate each layer by its own material and depth.
Next step
Use the linked calculator or planning hub to adjust dimensions, waste, coverage, depth, spacing, or product packaging for the real project.
Related guides
FAQ
How much gravel for a 10x20 driveway at 4 inches?
About 2.84 cubic yards with 15% allowance, commonly rounded to 3 cubic yards.
Is this tons or cubic yards?
This example uses cubic yards. Ask the supplier for ton conversion by material.
Does this include base and top layers?
No. It estimates one layer only.