Paver bases add a lovely touch to any outdoor project. When the proper materials are used, paver foundations are efficient, quick to install, and require little maintenance. A paver base is made up of three levels: subgrade, subbase, and base. Each layer serves as a specific type of support and has a unique material composition. The lowest level of compacted dirt beneath the installat... https://modutile.com/product/permeable-plastic-pavers-24x24/