Patio Cost Calculator UK
Steps to Estimate
- Enter length and width for total area in square metres.
- Pick material type matching your garden style and budget.
- Select site condition to add realistic preparation charges.
- Choose sub-base and waste allowances for precise materials.
- Tick VAT and extras like skip or drainage as needed.
- Click Calculate for instant breakdown and total.
Calculation Principles
Area derives from length × width. Hardcore volume = area × (sub-base depth/1000) × 1.1 for compaction. Sand/cement = area × 0.03m layer. Slabs count from typical 0.6×0.6m size with waste %. Costs multiply quantities by UK averages: slabs per material rate, hardcore £35/m³, prep per condition, labour £280/day × estimated days (area/6 m²/day). Extras fixed or per m². VAT applies to subtotal if selected. Figures reflect 2025 UK market norms.
Material Options
| Material | Cost/m² | Durability | Maintenance | Install Time |
|---|---|---|---|---|
| Concrete | £65-£120 | High | Low | Fast |
| Brick | £80-£140 | Medium | Medium | Medium |
| Slate | £120-£250 | High | High | Medium |
| Stone | £120-£475 | Very High | Medium | Slow |
| Porcelain | £100-£200 | Very High | Low | Fast |
Common Questions
How accurate are these figures? Estimates use average UK 2025 rates; local quotes may vary by 10-20% due to location or access.
What if ground is uneven? Select excavation; pros often add drainage to prevent pooling, increasing costs by £20-50/m².
DIY vs pro? Pros finish level in 3-4 days; DIY risks cracks or settling, often costing more to fix later.
Slab sizes? Calculator assumes 600×600mm; adjust mentally for patterns like herringbone adding 10-15% labour.
20m² patio total? Expect £1,700-£4,000 including all, depending on stone vs concrete choice.
References
- Checkatrade. (2025). Patio laying: Cost breakdown 2025. https://www.checkatrade.com/blog/cost-guides/patio-laying-cost/
- MyJobQuote. (2025). Patio Cost Calculator UK. https://www.myjobquote.co.uk/cost-calculators/patio-cost-calculator
- Handyy. Patio Slab Laying Cost Calculator. https://handyy.co.uk/patio-slab-laying-cost-calculator/
- Jewson. Paving Material Calculator. https://www.jewson.co.uk/material-calculators/paving