Home & garden
Work out the area, how many slabs you'll need, and a rough material cost.
About this tool
Enter your patio's length and width plus the size of slab you're laying, and this works out the total area, how many slabs you need including a waste allowance for cuts and breakages, and a rough total cost if you know the price per slab.
Rule of thumb
Most installers budget 5–10% extra slabs for cutting waste and breakages — more if your layout has awkward corners or curves.