Basic paver formula
For a rectangular project, first calculate the project area:
Project area = length × width
Then calculate the face area of one paver. Keep the units consistent; for example, convert both paver dimensions from inches to feet before calculating square feet:
Paver area = paver length × paver width
The basic quantity is:
Pavers needed = project area ÷ paver area
Finally, add your waste allowance:
Pavers to order = pavers needed × (1 + waste ÷ 100)
Round the final order quantity up to a whole paver.
Example: 12 ft × 20 ft patio with 6 in × 6 in pavers
A 12 ft by 20 ft patio has 240 sq ft of area. A 6 in by 6 in paver covers 0.25 sq ft because 6 inches equals 0.5 feet, and 0.5 × 0.5 = 0.25.
So the base quantity is 240 ÷ 0.25 = 960 pavers.
With a 10% waste allowance:
960 × 1.10 = 1,056 pavers
For this example, plan to order 1,056 pavers.
Why add waste?
Extra material can cover cutting, breakage, damaged pieces, layout adjustments, and small measurement differences. The right allowance depends on the project shape, installation pattern, number of cuts, and material. A simple rectangular layout may need less waste than a curved or highly cut-up area.
What about joints?
This basic calculation uses the paver's face dimensions and does not separately model joint width. Actual coverage can vary with joint spacing and the manufacturer's stated coverage. For purchasing, compare your calculated quantity with the manufacturer's coverage per package or pallet.
FAQ
How many 6 × 6 inch pavers do I need for 100 square feet?
Each 6 × 6 inch paver covers 0.25 sq ft, so 100 sq ft requires 400 pavers before waste. Add your chosen waste allowance and round the final order quantity up.
How much waste should I add?
There is no single allowance for every project. Consider the layout, cutting, breakage, and material. The calculator lets you enter your own percentage rather than assuming one universal rate.
Does the calculator account for paver joints?
The basic calculator uses the paver face dimensions. Joint width can affect actual coverage, so check the manufacturer's coverage information for the specific paver.
Should I calculate by square feet or by pallets?
Calculate the required paver count first, then compare it with the manufacturer's package or pallet quantity and round up to complete packages when necessary.
Can I use this for a walkway or driveway?
Yes, the area calculation works for rectangular projects such as patios and walkways. Driveways and other load-bearing applications also require an appropriate base, paver specification, and installation method.
Use the Paver Calculator
Open Paver Calculator
For related material estimates, see the Gravel Calculator and Concrete Calculator.
Planning estimates, not purchase orders
Estimates are for planning purposes only. Actual material requirements may vary based on site conditions, material specifications, installation methods, waste, and local requirements. Always verify quantities with your supplier or qualified professional before purchasing materials.