CalcCalcolatore di Pavimentazione
Ultimo aggiornamento: 2026-05-07
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| Lunghezza area (m) | Larghezza area (m) | Formato mattone | Schema di posa |
|---|---|---|---|
| 2 m | 2 m | 20 | 1 |
| 3 m | 3 m | 20 | 1 |
| 4 m | 3 m | 20 | 1 |
| 5 m | 4 m | 30 | 1 |
| 8 m | 5 m | 40 | 2 |
What is the Paver Calculator?
Pavers are sold individually or by the pallet, and the laying pattern significantly affects how many you need — a herringbone or 45-degree diagonal pattern creates more cut waste than a simple running bond. This calculator computes pavers needed for your area, applies a pattern waste factor, and calculates the gravel base volume required for a stable installation.
You may also find the Landscape Rock Calculator, Grout Calculator, and Retaining Wall Calculator useful.
Who Uses This Calculator?
This tool is used by homeowners laying a patio or driveway, landscapers quoting paving jobs, and concrete suppliers calculating pallet orders.
How to Use the Paver Calculator
- Enter your Area length.
- Enter your Area width.
- Enter your Paver size.
- Enter your Laying pattern.
- Click Calculate to see your results instantly.
Formula
The calculator uses the following formula:
Area = Length × Width; Pavers = ceil(area ÷ (paver_L × paver_W) × pattern_factor); Gravel = area × 0.15 × 1.8
Worked Example
A 4 m × 3 m patio using 200 × 100 mm pavers in herringbone pattern (5% extra waste) needs approximately 660 pavers and 3.24 m³ of compacted base material.
Step-by-Step Calculation
- Paved area: 4 m × 3 m = 12 m²
- Paver area (20×20 cm): 0.04 m² per paver
- Pavers with 5% waste: ceil(12 ÷ 0.04 × 1.05) = 315 pavers
- Gravel base (15 cm): 12 × 0.15 × 1.8 t/m³ = 3.24 tonnes
Common Mistakes to Avoid
- Skipping or under-sizing the gravel base — leads to settling and cracking
- Not compacting the gravel and sand bedding layers properly
- Using paver size in metres instead of centimetres
Frequently Asked Questions
For pedestrian patios: 100 mm compacted gravel + 30 mm bedding sand. For driveways: 150–200 mm compacted gravel + 30 mm bedding sand. The calculator uses a 150 mm base depth by default.
Running bond (standard): 5% waste. Herringbone (45°): 10–15% waste. Diagonal (45°): 15–20% waste. Complex patterns with multiple sizes: 15–20% waste. The calculator applies pattern-specific factors.
Sealing is optional but recommended — it reduces staining, enhances colour, and inhibits weed growth in joints. Apply penetrating sealer 28 days after installation. Reapply every 3–5 years.
A standard pallet covers 10–15 m² depending on paver size and thickness. 200 × 100 × 50 mm concrete pavers typically pack 500–600 per pallet. Always confirm coverage with your supplier.
Yes — if the slab is level and structurally sound. Use a 30 mm layer of bedding sand or polymer-modified mortar. This raises the finished paving level, so check door clearances and step heights first.