How to calculate a garden path gravel
A gravel path is cheap and quick, and a small path needs less than a cubic yard.
- Measure the full length of the path, following the bends.
- Pick a width, usually 3 to 4 feet.
- Use 2 to 3 inches of gravel over fabric.
- Add edging so the stones stay put.
Worked example
For a typical garden path gravel with length 30 ft, width 3 ft, depth 3 in, the volume is 22.50 cubic feet. Divide by 27 for 0.83 cubic yards. With a 10 percent allowance, plan for 0.92 cubic yards.
In pea gravel, 0.83 cubic yards weighs about 1.17 US tons at a planning value of 2,800 pounds per cubic yard.
Garden Path Gravel sizes and quantities
These common sizes are calculated with the same formula as the tool above, so you can find your number quickly.
| Size | Cubic feet | Cubic yards | With 10 percent extra | US tons |
|---|---|---|---|---|
| 15 by 3 ft, 2 in | 7.50 | 0.28 | 0.31 | 0.39 |
| 30 by 3 ft, 3 in | 22.50 | 0.83 | 0.92 | 1.17 |
| 50 by 4 ft, 3 in | 50.00 | 1.85 | 2.04 | 2.59 |
| 100 by 4 ft, 4 in | 133.33 | 4.94 | 5.43 | 6.91 |
Tips
- Pea gravel feels soft underfoot, while crushed stone is firmer.
- A compacted base reduces rutting.
- Rake the path once a year.
Common mistakes to avoid
- Making the layer too thin.
- Skipping the edging.
- Using stone that is too large for bare feet.
These figures are planning estimates. Real material varies in moisture, size, and compaction, so confirm weights and order quantities with your supplier.
Frequently asked questions
How many cubic yards do I need for a garden path gravel?
Multiply the dimensions in feet and divide by 27. The example above, length 30 ft, width 3 ft, depth 3 in, needs 0.83 cubic yards before waste.
How much extra should I order?
Add 5 to 10 percent for waste. Add more if the ground is uneven or the material is loose.
Can I enter inches and feet together?
Yes. Each box has its own unit selector, so you can mix feet and inches.
How much does garden path gravel material weigh?
0.83 cubic yards of pea gravel weighs about 1.17 US tons as a planning value.