Paver Base Calculator: Gravel and Sand Depth Guide

Quick Answer

Most pedestrian paver patios need 4 to 6 inches of compacted gravel base and 1 inch of bedding sand. Driveways usually need 8 to 12 inches of base.

Use the [Paver Calculator](/paver-calculator) to adjust the dimensions, waste factor, product coverage, and unit price for your exact project.

Formula

``

Cubic yards = area x depth in feet / 27

``

Example Estimate

1. A 12x12 patio is 144 square feet.

2. Six inches of gravel is 0.5 feet.

3. 144 x 0.5 = 72 cubic feet.

4. 72 / 27 = 2.67 cubic yards.

Reference Table

| Project | Gravel base | Bedding sand |

|---|---:|---:|

| Walkway | 4 in | 1 in |

| Patio | 4 to 6 in | 1 in |

| Driveway | 8 to 12 in | 1 in |

Practical Tips

- Compact base in layers.

- Slope away from buildings.

- Use edge restraint and polymeric sand.

When to Round Up

Round up when the project has cuts, corners, fragile materials, uneven surfaces, delivery minimums, or any chance that matching the same product later will be difficult.

Next Step

Open the [Paver Calculator](/paver-calculator), enter your exact numbers, and save the estimate before buying materials.