Made to last.

Caithness flagstone technical specifications

Caithness flagstone's striking appearance and exceptional strength makes it highly sought after

for public spaces, corporate interiors, building projects and high end residential architecture. 

This high-density sedimentary sandstone is extracted from a 3 m high bed and quarried from 16

principle layers. These layers are split into a total of 49 individual flagstones, ranging in thickness

from 20 mm to 160 mm. We carefully select our stone from the layer best suited to the end use.

Caithenss flagstone technical properties and test results


Caithness Flagstone is from the Old Red Sandstone of Devonian age. It is very fine grained with a

dark grey colour which weathers to various colours dependent on the iron content in the area of

extraction. When polished, the hewn stone finishes darker and more consistent in colour, giving

Caithness Flagstone its signature, striking dark look.

See it for yourself, we are always happy to provide samples of our stone.

Quality Assurance

We understand the design and build process and are routinely selected as a supplier where

Caithness flagstone is specified. We quarry, cut, finish and deliver all material to specification.

To ensure the highest standards of products, Norse Stone is ISO 9001:2015 certified.

Find out more on our accreditations and awards page.