materials-guides · 4 min read

Flagstone Guide

Flagstone is a signature natural-stone hardscape — here is how it is specified and installed.

Flagstone is quarried natural stone split into irregular flat pieces. It reads timeless, works on both dry-laid and mortared installations, and comes in a wide palette.

Thickness by use

UseThickness
Pathways over compacted base1"–1.5"
Patios on sand1.5"–2"
Mortared over slab1"–1.5"
Driveable surfaces2"+
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