Coursing and Jointing in Rubble Stone Masonry
450 mm
For squared or random rubble stone masonry, it is essential to incorporate coursing at regular intervals not exceeding 450mm to maintain structural integrity and a consistent appearance
For squared or random rubble stone masonry, it is essential to incorporate coursing at regular intervals not exceeding 450mm to maintain structural integrity and a consistent appearance. Bed joints up to 25mm wide may be acceptable, but careful consideration must be given to selecting and installing appropriate wall ties to suit the wider joint dimensions.
Basis in regulation
BS 8000-3
Read the source
How to check it on site
Check that rubble masonry is regularly coursed within 450mm vertically and that wall ties are correctly specified and installed for the wider joint widths.
Common failure
Inconsistent coursing in rubble work can lead to structural instability and poor aesthetic quality; incorrect wall ties for wider joints compromise wall stability.
Last updated 23 August 2026. This is our editorial summary of publicly available regulation, not building control approval or a warranty determination.