The base of the paving stone, paver base is a mixture of gravel. The floor forms a solid foundation. When squeezing, the material is blocked. The size ranges from 3/4 of an inch down to dust. The most common stone used for this application is crushed limestone. The product color and the material may vary by region. Preparing a suitable foundation is essential for any paving project. Do not place plastic under any paving application, don’t cut corners, and never compact the bedding layer. Always use the correct bedding material, you need to accurately measure the required substrate.