Paver bases give any outdoor project a lovely final touch. When the proper materials are used, paver foundations can be easy to install, low-maintenance, and effective. A paver base is composed of three levels: subgrade, subbase, and base. Each layer serves as a specific type of support and has a unique material composition. https://modutile.com/product/gravel-pavers-outdoor-basketball-court-base-24x24/