Paver Calculator
Count patio pavers from area and paver size, with a pattern waste allowance.
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What this tool does
Count patio pavers from area and paver size, with a pattern waste allowance. Joint width is conservatively ignored (sand joints are filled, not covered by extra pavers). Herringbone and border-heavy designs need the upper end of the waste range.
How to use the Paver Calculator
- Enter or select length in ft.
- Enter or select width in ft.
- Enter or select paver size.
- Enter or select pattern / cutting waste (%).
- Read the calculated result; change any measurement to compare alternatives.
Formula
paver face area: 4×8 = 0.222, 6×6 = 0.25, 6×9 = 0.375, 12×12 = 1 sq ft; pavers = ceil(area / face × (1 + waste/100))
- length
- Length (ft, before metric conversion)
- width
- Width (ft, before metric conversion)
- paver
- Paver size
- patternWaste
- Pattern / cutting waste (%)
Joint width is conservatively ignored (sand joints are filled, not covered by extra pavers). Herringbone and border-heavy designs need the upper end of the waste range.
Worked example
For paver calculator, the following measurements illustrate the exact method: Length: 20; Width: 10; Paver size: 4x8; Pattern / cutting waste (%): 10.
Inputs
- Length20 ft
- Width10 ft
- Paver size4 × 8 in (Holland)
- Pattern / cutting waste (%)10
Result
- Pavers to buy991
- Patio area200 sq ft
- Pavers per square foot4.5
Results explained
- Pavers to buy
- Pavers to buy from the formula above. Joint width is conservatively ignored (sand joints are filled, not covered by extra pavers). Herringbone and border-heavy designs need the upper end of the waste range.
- Patio area
- Patio area from the formula above, expressed in sqft before metric conversion. Joint width is conservatively ignored (sand joints are filled, not covered by extra pavers). Herringbone and border-heavy designs need the upper end of the waste range.
- Pavers per square foot
- Pavers per square foot from the formula above. Joint width is conservatively ignored (sand joints are filled, not covered by extra pavers). Herringbone and border-heavy designs need the upper end of the waste range.
Frequently asked questions
A 4 × 8 in paver covers 32 sq in, so 4.5 pavers make a square foot. A 100 sq ft patio needs 450 pavers before waste.
Use 10–15%: the 45° pattern cuts nearly every edge paver. Running bond on a square patio can be as low as 5%.
At 6 × 9 in (0.375 sq ft each), 100 sq ft needs 267 pavers, or about 294 with 10% waste.
Borders use the same pavers laid on edge or in a contrasting colour — they are inside the area count, but order the border colour as its own quantity.
Compacted gravel base, bedding sand, edge restraints and jointing sand — the Paver Base Calculator sizes the base and sand layers.