Construction

Paver Calculator

Build a material list for a paving project: paver pieces, cutting allowance, gravel base, bedding sand and edging. The layer diagram keeps each depth and allowance visible.

Change any input to update the calculation. Unit changes preserve the physical quantity.

CALCULATION SETUP

Inputs

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%
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Calculated locally in your browser. No sign-up or input upload.

YOUR CALCULATION

Results

Pavers to purchase

790 pieces

Paved area

15 m²161.459 ft²

Perimeter / edging estimate

16 m52.493 ft

Loose gravel base

2.475 m³3.237 yd³87.404 ft³

Base aggregate weight estimate

3.96 tonnes4.365 US tons3,960 kg8,730.306 lb

Bedding sand

0.394 m³0.515 yd³13.905 ft³

Sand weight estimate

0.63 tonnes0.694 US tons630 kg1,388.912 lb

Total finished layer depth

235 mm9.252 in
Pavers · 60 mmSand · 25 mmGravel base · 150 mm
Paver, bedding sand and gravel base cross-section · schematic, not to scale

Material breakdown

Paver layer
790 pieces including 10% cutting allowance
Gravel base
2.25 m³ finished → 2.475 m³ loose
Bedding sand
0.375 m³ finished → 0.394 m³ order

Assumptions & checks

Piece counts estimate repeating rectangular modules, including joints. Interlocking shapes, borders and patterns need product coverage data and an allowance for cuts.

Base and sand allowances are separate from paver waste. Depth presets are examples, not a structural or drainage design.

Formula

Piece coverage is a repeating rectangular paver-and-joint module. Actual cuts and laying patterns may change the count.

N = ceil[A/((paverL+joint)×(paverW+joint))×(1+w/100)]; Vbase = A×baseDepth×(1+baseAllowance/100); Vsand = A×sandDepth×(1+sandAllowance/100)

Worked example

Using the default values shown in the calculator, the same formula gives the following result. This is a quick sanity check for the calculation, not a design recommendation.

Inputs

Project shape
Rectangle
Project length
5 m
Project width
3 m
Paver face length
200 mm
Paver face width
100 mm
Paver thickness
60 mm
Joint width
3 mm
Paver cutting/waste allowance
10 %
Compacted gravel base depth
150 mm
Base extra volume allowance
10 %
Loose base density
1600 kg/m³
Bedding sand depth
25 mm
Sand extra volume allowance
5 %
Loose sand density
1600 kg/m³

Result

Pavers to purchase
790 pieces
Paved area
15 m²
Perimeter / edging estimate
16 m
Loose gravel base
2.475 m³
Base aggregate weight estimate
3.96 tonnes
Bedding sand
0.394 m³
Sand weight estimate
0.63 tonnes
Total finished layer depth
235 mm

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Frequently asked questions

Are joints included in the paver count?

Yes. The estimator adds one joint width to both paver face dimensions to form a repeating module. Boundary joints and cut pieces are approximated, so check your layout and manufacturer's coverage.

Does paver waste also increase the gravel base?

No. The base and sand use their own depth and volume allowances. Paver waste applies only to pieces, so material layers are not silently inflated by a cutting allowance.