Concrete slab paving can be installed “unbound” on a bed of sharp sand which should be approximately 30mm after final compaction. Concrete slab paving can also be laid “bound” on a bed of mortar which should be approximately 40mm after final compaction. Slabs with plan dimensions greater than 450x450mm are normally laid using the “bound” method.

Tobermore strongly advise against spot bedding as this can cause staining to appear on the surface.

For a detailed breakdown of how to lay our concrete slabs unbound, please access our unbound slabs installation guidelines. Unsure which installation method to use? Read our benefits of bound and unbound paving blog.