UK decking calculator
Garden Decking Cost Calculator
Estimate professionally supplied and installed softwood, composite or hardwood decking using current 2026 UK benchmarks and postcode-aware regional modelling.
Enter a postcode to set the cost region automatically.
Estimated supplied & installed decking cost
£1,655 – £2,246Typical planning estimate £1,891. Handrails, major ground levelling, demolition and unusually complex access are not included.
Benchmark source: Checkatrade 2026 decking guidance, including size-based softwood, hardwood and composite rates. Regional and raised-deck adjustments are UK Home Costs modelling assumptions. See sources →