The traditional base for a cobblestone patio is 4 to 6 of compacted gravel above the ground. If you're going to install a roadway or road intended for vehicle traffic, you'll need to double the thickness of the gravel layer. Sweeping more sand at the joints between the pavers and vibrating the area even more with the plate compactor creates a permanent walkway appearance; the joints must be filled with sand at the end of the project. The depth of the base of the cobblestone is determined by the type of stones used and the type of sand or gravel that will be placed beneath them.
A 1-inch deep layer of bed sand covers crushed concrete and pavers are placed directly on bed sand, says the Oregon State University Extension Service. For example, excavated ground, together with crushed concrete and bed sand, creates a cobblestone base. The weight is distributed between the thin pavers and the concrete slab below them, significantly reducing cracks. To effectively distribute weight and prevent damage, pavers must be at least 2 inches thick, especially if more than one person crosses them at a time.
We have pavers, patio pavers, driveway pavers, landscape pavers, retaining wall designs, fire pit kits, fireplace kits, and a large selection of installation guides. Paving stones (especially permeable pavers) immediately drain water to the ground and don't become as turbid in humid or dusty climates in dry climates. For example, an old concrete walkway or patio can be used as a solid base to cover sand and pavers. Once the trench is filled with sand and gravel and has been compacted, you must place restraints on the base to prevent the base and pavers from moving due to age or weather conditions.
Saving money by using thinner pavers generally causes cracks in those cobblestones, and cracks allow weeds to escape and populate the cobblestone walkway. When using thin pavers, there is no need to remove the original poured concrete in order for the pavers to fit into place. Because pavers must withstand heavy weight for years, it is essential to use pavers of the right thickness and install them correctly to avoid cracks and other damage due to decay. Therefore, you should dig a paving stone patio base about 9 inches (22.86 cm) deep to accommodate any type of paving stone.
Fill the trench until there is approximately 3.5 inches (8.89 cm) space for sand and pavers. Unlike a poured concrete walkway, a walkway made of pavers provides a brick or stone appearance and eliminates the need to drag and finish messy concrete.