Estimate paving slabs and sub-base bulk bags for your UK patio.
Measure your patio, choose the slab dimensions and allow for cutting waste. This is a planning estimate, not a construction specification.
Planning estimate only. Site conditions, product specifications and installation methods vary. Verify all figures with your supplier or installer before ordering.
Approximate slab count = patio area ÷ area of one slab plus joint allowance, with cutting waste added. Sub-base tonnes = area × depth × density.
Laying patterns, cuts, compaction and ground conditions affect actual quantities. Check manufacturer guidance and site conditions.