How this calculator works
A path is a long thin rectangle. Pavers are the area divided by the area of one paver, with waste, on a 4 inch stone base and a 1 inch bed of sand. Gravel and mulch are the area times the depth, converted to tons or cubic yards. Edging runs along both sides.
Worked example: a 30 × 3 ft path (90 ft²) in 12 × 12 inch pavers takes 99 pavers, 1.9 tons of base stone and 0.38 tons of sand. The same path in 3 inches of gravel takes 1.3 tons, or 0.83 cubic yards of mulch. Edging is 60 ft on both sides.
Materials for a 3 ft wide path by length (12 × 12 in pavers, 3 in gravel)
10% waste.
| Length | Pavers | Paver base | Gravel | Edging |
|---|---|---|---|---|
| 10 ft | 33 | 0.6 tons | 0.4 tons | 20 ft |
| 20 ft | 66 | 1.2 tons | 0.9 tons | 40 ft |
| 30 ft | 99 | 1.9 tons | 1.3 tons | 60 ft |
| 50 ft | 165 | 3.1 tons | 2.1 tons | 100 ft |
| 100 ft | 330 | 6.2 tons | 4.3 tons | 200 ft |
Tips before you buy
- Mark the path with a garden hose or string first, and walk it before you dig, so that the curves feel natural.
- For pavers, compact the base and screed the sand level, and lay the pavers tight with their joints filled with sand.
- A gravel path wants angular stone that locks together, laid on fabric, with firm edges.
- A mulch path is quick and cheap but needs topping up every year or two.
- Slope the path gently to the side so that it sheds water, and avoid leaving low spots.
Tools & materials for this project
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Frequently asked questions
How many pavers do I need for a 30 foot path?
99 pavers of 12 × 12 inches for a 3 ft wide path, with 10% for cuts.
How much gravel for a 30 foot garden path?
About 1.3 tons for a path 3 feet wide and 3 inches deep, with 10% extra.
How much mulch for a garden path?
0.83 cubic yards for a 30 × 3 ft path 3 inches deep, which is 12 bags of 2 ft³.
How wide should a garden path be?
At least 3 feet for one person with comfort, and 4 feet for two people side by side or a wheelbarrow. Secondary paths can be narrower.
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Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.