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Keltstone Walling


Note: Keltstone is sold per full bale. Please round your required quantity to the nearest bale.
For 10 bales+ enter your required quantity.
Qty (per m²) Qty (per bale)
8.76 m² 1 bale
17.52 m² 2 bales
26.28 m² 3 bales
35.04 m² 4 bales
43.80 m² 5 bales
52.56 m² 6 bales
61.32 m² 7 bales
70.08 m² 8 bales
78.84 m² 9 bales
87.60 m² 10 bales


Roadstone’s Keltstone Walling is a unique masonry product designed to recreate the look of traditional Irish stone.

It blends beautifully into traditional or modern designs. Keltstone Walling can be used for the external and internal walls of your home – in traditional cavity wall construction or as the external leaf of framed buildings.

Keltstone Walling will add character and charm to your home and is ideal for entrance walls, boundary walls, piers, landscaping and in fact anywhere brickwork, stonework or as an attractive alternative to where plastered finished would be used.




Technical Specification

Produced to meet the requirements of:

  • I.S. EN 771-3:2011 Specification for Masonry Units – Part 3: Aggregate Concrete Masonry Units using an NSAI, System 2+ Certificate of factory production control and I.S. EN ISO 9001:2000 Quality Management System.

Compressive Strength

  • Group 1 (solid)  15N/mm²

Fire Resistance

  • Euro code 6 – I.S. EN 1996  Design of Masonry Structures – Part 1-2: General Rules – Structural Fire Design,  defines the methods and calculations to determine the fire resistance of concrete block walls.  Table N.B3.1 to table N.B3.6 of annex A, Roadstone Blocks have a Class A1 Fire rating. Typically 90 minutes fire rating can be achieved with a 90mm wall width designed and constructed to I.S. EN 1996.

Thermal Properties

  • I.S. EN 1745 Masonry and masonry products-Methods for determining design thermal values . table A3 Typical Thermal resistance “R” value of 100mm solid block   = 0.084 W/mK

Specials Shapes available.

Case Studies & Resources

Case studies






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