It’s a manufacturer recommendation that at heights above 20mm an additional support is placed in the middle of a Paver (600mm x 600mm).
For domestic applications, customers often choose to ignore this. However, should the customer have a void of over 100mm under the paving we would recommend that they reconsider the central support.
For voids of over 250mm, we would recommend a safety mesh be applied to the underside of the paving as well as a central support.
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