Permeable and conventional paver systems may require different aggregate and drainage designs.

How to plan it
- Identify the exact paver product and intended stormwater goal
- Use its specified open-graded or conventional base system
- Confirm local soil infiltration and overflow approach
Check before buying: Do not use a conventional base calculator as the final design for a permeable installation.
Turn this into a quantity
Record your site measurements first. Then use a calculator with the depth, application rate, or coverage from the actual material specification.
Open paver base calculatorSource and limits
Concrete Masonry & Hardscapes Association: Paver technical guidance. Local conditions and manufacturer guidance may call for different materials or installation details.