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Paver calculator

How many pavers for a patio, path or courtyard from its size and the paver you are using, with extra for cuts, plus the bedding sand underneath.

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The answer

Pavers to order 132 pavers
Bedding sand 0.6 m³
Area 20.00 m²
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Two jobs, worked out

Pavers = area / (paver length x paver width, in metres), plus the cutting allowance, rounded up. Sand = area x bedding depth, rounded up to the next tenth of a cubic metre.

A square-paver patio

5 by 4 m in 400 by 400 mm pavers
Length 5 m
Width 4 m
Paver length 400 mm
Paver width 400 mm
Bedding sand depth 30 mm
Extra for cuts and breakages 5 %
Bedding sand 0.6 m³
Area 20.00 m²
Pavers to order 132 pavers

A brick-paved courtyard

6 by 3 m in 230 by 115 mm pavers, 10% for a herringbone
Length 6 m
Width 3 m
Paver length 230 mm
Paver width 115 mm
Bedding sand depth 30 mm
Extra for cuts and breakages 10 %
Bedding sand 0.6 m³
Area 18.00 m²
Pavers to order 749 pavers

Small pavers in a pattern mean many more cuts, hence the bigger allowance.

Paving questions#

How many pavers do I need?
Divide the area by the face of one paver, both in square metres, and add extra for cuts. A 5 by 4 m patio is 20 m²; a 400 by 400 mm paver is 0.16 m², so 125 pavers, and 132 with 5% for cuts and breakages.
How many pavers in a square metre?
Divide 1 by the paver's face in square metres: 6.25 for 400 by 400, about 37.8 for 230 by 115 brick pavers. Add your cutting allowance on top.
How much bedding sand?
The area times the bedding depth. The calculator starts at 30 mm, which you can change; your paver supplier's laying guide says what their pavers need.
How much extra for cuts?
About 5% for a simple rectangle, more for herringbone patterns, curves and lots of edges. Set the box to suit the job.