Free paving calculator
How many packs
should you order?
Start with the checked area and the coverage printed by your supplier. We will round the result up to whole packs.
Your pack order
How we work it out
Required coverage = net area × (1 + allowance ÷ 100). Divide that by the coverage per pack, then round up to a whole pack. For an area of 47 m², a 7% allowance and packs covering 8.5 m², you would order six packs covering 51 m².
Pack rounding is not the same as your allowance. Before ordering, check the product, pattern, contents of each pack and any separate border requirements. This calculator works out coverage, not whether the construction is suitable for the site.
Read the paving blocks and packs guide