How many pavers do you need for a fire pit? The answer depends a lot on how big you want your fire pit to be and the type of paving stones you wanna use. Normally, the standard size for a fire pit is between 36 and 44 inches inside diameter, but that’s not a rule, once the size will follow your backyard space and all the local regulations. Step 10: Seal the Pavers. It is optional but advisable to seal your interlocking stone pavers following installation. The sealant helps the pavers resist stains from environmental components, such as oils and weed growth. A sealant also boosts the color, and it is another aid to hold the joint sand in place.

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Installation process

Whether you are building a paver project for the first time or the tenth, hardscape installations can be messy work. There will be mud, but it will be gorgeous in the end. Unless your project involves overlaying existing concrete, the first step is to excavate the top layer of soil. The amount of soil excavated will depend on the type of project. Typically, the next step is to install a layer of compacted aggregate, then a layer of bedding sand, then the hardscapes, then jointing material.

BASE

Pavers are installed on a compacted granular aggregate which should be between 4 and 6 inches deep. The depth of the base layer is influenced by the soil type and application. The base layer should be leveled and compacted firmly, and will safeguard against the pavers shifting or settling.

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BEDDING SAND

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Once the base is in place, a layer of sand is added and leveled or screeded. Bedding sand plays a critical role in ensuring proper interlock between the pavers and allowing for a smooth surface. Bedding sand should be at least 1-inch deep and spread evenly across the base material.

POLYMERIC SAND

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Pavers are laid on top of the leveled sand. Polymeric sand is then swept into the joints between the pavers, and a compactor should be used to ensure the sand is evenly distributed into the joints. By compacting, you obtain joints that are nearly 20% stronger. Polymeric sand helps to further lock the pavers in place and plays a critical role in keeping debris and weeds out of the joints. Polymeric sand is specially formulated for the filling of narrow or wide joints when installing pavers, slabs or natural stones. Unlike conventional sand, it stays in place and remains stable. It softens when wet and firms up when dry to better resist soil movements.