Count the field
Use the installed paver module, not nominal area alone
Measure the rectangular patio area, then confirm the paver's actual face dimensions and intended joint. For a regular layout:
installed module = (paver length + joint) × (paver width + joint)
base pavers = patio area ÷ installed module, rounded upward
Apply a cutting allowance to the whole base count and round upward again. This estimates field units; borders and specialty pieces need their own layout.
Worked example
A 12 × 10 ft patio with 8 × 4 in pavers
With an entered 1/8 in joint, the installed module is 8.125 × 4.125 in. The 120 ft² field requires 516 whole pavers before waste. A user-selected 10% cutting allowance produces an order count of 568 pavers.
Pattern, border, curves, diagonal cuts, breakage, mixed sizes and bundle quantities can change the appropriate allowance. Use manufacturer or installer guidance for the selected layout.
Below the pavers
Base aggregate and bedding sand are separate calculations
Paver count does not determine excavation or layer thickness. Once the approved section provides finished base and bedding depths, calculate each material as area × depth. Handle base compaction separately rather than adding it to the paver count.
Sources
References and project authority
These references support the stated measurement convention or planning boundary. Product instructions, the approved design, and local requirements take priority for the actual project.
- Concrete Masonry & Hardscapes Association construction guidance covers interlocking concrete pavement joints, bedding and base construction while directing projects to system-specific requirements.