Bruhn Mount Gambier limestone blocks are manufactured in consistent modular sizes for efficient masonry construction across residential, commercial and landscape applications.
Available in both ashlar and veneer formats, our blocks are designed to support accurate coursing, reliable installation and a refined architectural finish. Custom dimensions can also be produced to suit project-specific requirements.
Technical Notes
Width refers to mortar bedding surface (rockface may overhang approx. 20mm)
290mm course height ≈ 5 ashlar courses per m² (including 10mm joints)
240mm course height ≈ 6 ashlar courses per m² (including 10mm joints)
All square metre calculations include standard 10mm mortar joints
Decorative moulds are supplied per linear metre (refer mould section)
Frogged ashlar options available for 5mm joint finish
Bruhn limestone blocks are cut to consistent face dimensions to ensure clean masonry alignment and uniform visual rhythm across wall systems.
These modular formats allow flexibility in structural design while maintaining consistent external proportions.
A standard 290 × 660 × 100mm block weighs approximately 18kg, providing an efficient balance between structural mass and on-site handling for bricklayers and stonemasons.
For framed construction systems, Bruhn also supplies Mount Gambier limestone veneer cladding in 35mm and 50mm thicknesses.
This allows architects and builders to achieve the visual integrity of solid stone while working within timber or steel frame structures.
*** Explore Veneer Cladding Options (client to provide link or PDF)
For detailed project planning, including pallet quantities, coverage rates and installation data, refer to the technical documentation.
*** View Block Size Chart (client to provide link or PDF)
*** Download Technical Specification PDF (client to provide PDF)