Calculator Inputs
Use straight paths or segment totals, then choose spacing style.
Responsive form: 3 / 2 / 1 columns
Example Data Table
This example shows one common layout. Your results will vary by stride and site conditions.
| Scenario | Inputs | Outputs |
|---|---|---|
| Lawn stepping path Rectangular stones |
Path: 12.0 m End clearance: 0.5 m each end Paver: 45 × 30 cm Gap method: 8 cm Waste: 8% |
Layout pavers: 20 Buy (with waste): 22 Footprint area: ~2.97 m² Gravel @ 5 cm: ~0.16 m³ Sand @ 3 cm: ~0.10 m³ |
| Curved walk line Segment input |
Segments: 3.0 + 2.5 + 4.0 m End clearance: 0.3 m each end Circular paver: 40 cm diameter Center spacing: 0.65 m Waste: 10% |
Layout pavers: 14 Buy (with waste): 16 Achieved gap depends on run Base volumes scale with footprint |
Formula Used
- Usable path length = Total path length − 2 × End clearance.
- Paver run (along path) = Length (rectangular) or Diameter (circular).
- Gap method paver count solves: n × run + (n − 1) × gap ≤ usable. So n = floor((usable + gap) ÷ (run + gap)).
- Center method paver count: (n − 1) × spacing ≤ usable, so n = floor(usable ÷ spacing) + 1.
- Achieved gap (when n > 1): (usable − n × run) ÷ (n − 1).
- Pavers to buy = ceil(n × (1 + waste%)).
- Footprint area = paver area × pavers to buy. Rect area = L × W, circle area = π × (D/2)².
- Base volume = footprint area × layer depth × (1 + compaction%).
- Excavation volume = footprint area × (gravel + sand + thickness + allowance).
Practical tip
If you want a natural stride, start with center spacing near
0.6–0.7 m (about 2–2.3 ft), then adjust for comfort.
How to Use This Calculator
- Pick a unit system matching your tape measure.
- Choose straight or segments based on your path shape.
- Set end clearance so the first and last pavers fit cleanly.
- Select spacing method and enter either gap or center spacing.
- Enter paver dimensions for your selected shape.
- Tune waste and base depths to match site conditions.
- Press Calculate and review achieved spacing details.
- Download CSV or PDF to take the estimate on-site.