An introduction to British Standards

Wall Tie Design Considerations

When selecting which wall tie to use there are many factors which should be considered, these include masonry leaf width, cavity size, height of building, type of building and geographical location.

There are numerous standards and documents which offer guidance on wall tie usage and these should be considered before making a decision, these include:

EUROCODE – Design of Masonry Structures (BS EN 1996-1-1:2005)

Eurocode 6 is the code for the design of reinforced and unreinforced masonry.

BS EN 845-1:2003+A1:2008 – Specification for Ancillary Components for Masonry – Part 1 : Ties, Tension Straps, Hangers and Brackets

Specifies the standard requirements for wall ties – material, tolerances, testing and declared values.

Refers to PD6697:2010 for tie types and criteria.

PD6697:2010 Recommendations for the Design of Masonry Structures to BS EN 1996-1-1 and BS EN 1996-2

Contains recommendations on tie lengths, embedment, density, material and positioning.

APPROVED DOCUMENT E : Resistance to the Passage of Sound

Part E of the building regulations specifies performance requirements for walls for resistance of passage of sound.

The document covers all buildings with rooms for residential use including domestic dwellings, hotels, care homes and student / nurse accommodation blocks.