How to use this paver base calculator
Paver patios normally need a properly prepared base and a bedding layer. This planning tool estimates the materials for uniform layer depths. The appropriate thickness and material specification depend on soil, drainage, climate and expected loads.
Step-by-step instructions
- Measure the planned patio footprint.
- Choose an aggregate depth appropriate to your design.
- Enter sand depth and aggregate compaction factor.
Calculation formula
Important assumptions and limitations
Level rectangular patio and uniform layers. Material quantities exclude edge restraints, excavation disposal, pavers, drainage and geotextile.
For material orders, confirm package yields, stock sizes and installation instructions with the actual manufacturer or supplier. Your building department determines the applicable local code; a quantity estimator is not a structural design or permit approval.
Frequently asked questions
Is four inches of gravel enough for a patio?
It depends on local soil, freeze-thaw conditions, material specification and loads. Consult local installation standards rather than relying on a universal depth.
Does the estimate include pavers?
No. The figures are for aggregate base and bedding sand only.
We publish formulas and assumptions so you can verify an estimate. Learn about our methodology or report an issue.