Groundworks & Surfacing Tools

Calculate sub-base gravel volume, tonnes and bulk bags for a concrete slab.

Work out how much gravel you need in m³, tonnes and bulk bags for driveways, paths and borders. Uses UK densities and bag sizes.

Work out how many block pavers or paving slabs you need, plus bedding sand and cost, from your patio or driveway size. Covers standard UK sizes with wastage allowance.

Free UK tarmac calculator. Work out how many tonnes of tarmac — or bags of cold-lay — you need for a driveway, path or car park, plus coverage per tonne and optional cost.

Work out fencing cost in the UK: panels or featheredge boards, posts, gravel boards, concrete and a total price with cost per metre. Covers panel and closeboard modes with editable 2026 prices.

Estimate the price of a block paving, resin, gravel, tarmac or concrete driveway by area, with 2026 UK supply-and-fit rates, groundwork and region adjustments.

Generate professional landscaping quotes with editable unit prices, service quantities, subtotal, tax, and total. Export to CSV or print.