Catcastle Grey Sandstone is a coarse-grained sandstone known for its brown/grey/variegated coloration. Quarried at Lartington near Barnard Castle in Teesdale, England, this stone has a rich history of use in various construction projects, particularly in severe exposure areas such as sea walls and reservoirs.

Initially opened up during the laying of the railway over Deepdale valley on its route to Carlisle, the quarry provided stone for many railway bridges north of York and the abutments to Lendal Bridge in York. Its durability and suitability for harsh environments led to its extensive use on reservoirs and harbor walls in the North East region.

Catcastle Grey Sandstone possesses a unique appearance characterized by its coarse grain and occasional large quartz inclusions, along with variegated brown feature markings. This distinctive combination adds character and visual interest to architectural projects.

In recent years, Catcastle Grey Sandstone has been utilized in notable construction projects such as the Glasgow Sheriff's Court, Hull Crown Court, and the significant development of the Buchanan Shopping Centre in Glasgow. It has also played a role in the restoration of historic landmarks like Stirling Castle, notably contributing to the reconstruction of the Great Hall, including the full parapet.

Overall, Catcastle Grey Sandstone's durability, unique appearance, and suitability for severe exposure areas make it a valued choice for architects, builders, and restoration specialists in various construction projects across the region and beyond.

TEST RESULTS

BS EN 771-6-2011 Natural Stone Masonry Units

Resistance to Fire...Class A1

Shear Bond Strength...Fixed Value

Apparent Density ...(Kg/m³)2258

Open Porosity ...(%)14.35

Water Absorpotion... (g/m.sec²)22.81

Compressive Strength... (Mpa)53

Flexural Strength ...(Mpa)5.2

Frost Resistance... (Cycles)84

Thermal Conductivity...NPD