Quick answer
Paver base quantity is based on area and the compacted layer depth, but the excavation must allow for base, bedding, pavers and the required drainage. Loose delivery volume is usually greater than the final compacted volume.
Step by step
- Map the finished area Break irregular patios and paths into rectangles or triangles and add the sections.
- Set the layer depths Use the specified compacted base depth for the soil, drainage and expected traffic.
- Convert compacted volume Calculate cubic feet or cubic yards, then apply a clearly labeled compaction and handling allowance.
- Plan the build-up Include bedding sand, paver thickness, edge restraint, slope and excavation disposal separately.
Formula or rule of thumb
Example
A 240 ft² patio with a 6 in compacted base needs 120 ft³, or 4.44 yd³, before the supplier-specific allowance for compaction and delivery.
Common mistakes
Using paver thickness as base depth, ignoring subgrade drainage, ordering loose material as though it were compacted, and forgetting edge restraints.
Planning note: product yields, installation methods, site conditions and local requirements can change the final quantity. Use the exact manufacturer or supplier information before purchasing.
Decision guide
| Decision point | What the estimate tells you | What to verify |
|---|---|---|
| Measurements | Start with accurate project dimensions and the correct units. | Replace generic assumptions with site measurements. |
| Product data | Use the actual package yield, coverage or density. | Check the current manufacturer or supplier label. |
| Final decision | Treat the result as an early planning estimate. | Confirm final quantities and requirements before purchase. |
Authority and verification
RenoMetric provides transparent planning arithmetic, not a structural design or contractor quote. Verify final decisions with the current product label or supplier data, the applicable local requirements, and a qualified professional when the project is safety-critical.
- RenoMetric methodology — formulas, units and planning limitations.
FAQ
How deep should a paver base be?
It depends on soil, climate, drainage and traffic; use the project specification rather than one universal depth.
Is bedding sand included in base quantity?
No. Keep base stone, bedding sand and joint material as separate line items.
Does the calculator set the patio slope?
No. Set slope from the drainage plan and confirm elevations before excavation.