What materials should I use in the base of my patio or driveway?

Base requirements can vary by project. But typically a residential patio or driveway base in ideal site conditions will consist of compacted dense-graded aggregate, will be a minimum of six inches thick, and will extend beyond the perimeter of the patio by at least twelve inches. There will also be a minimum of one inch of screeded bedding sand on top of the aggregate. For specific details, download our Technical Guide.