How to Choose the Right Wall Tie for Your Building Project

Wall ties are a small but vital component in cavity wall construction. Wall ties are important pieces of builder’s metalwork as they help anchor inner and outer walls together, ensuring structural stability and preventing long-term issues such as wall separation or moisture ingress. Whether you’re working on a new build, extension, or remedial project, selecting the right wall tie is essential for compliance, safety, and durability.

  1. Understand the Wall Type and Cavity Width

The first step in choosing a wall tie is knowing your cavity width. Wall ties are typically categorised by the cavity size they’re designed for; common sizes include 50mm, 75mm, and 100mm cavities. Using a tie that’s too short or too long can reduce performance and lead to structural issues. 

Also consider whether you’re working with standard cavity walls, timber frame constructions, or masonry-to-steel connections. Each requires a specific type of tie with appropriate features and performance ratings. 

  1. Choose the Right Tie Type

There are several types of wall ties, each suited to different applications, for example: 

  • Type 1 – Heavy-duty wall ties for buildings over 15 metres tall or those in exposed locations. 
  • Type 2 – Medium-duty wall ties suitable for domestic dwellings up to 15 metres in height. 
  • Type 3 – Light-duty wall ties used for sheltered low-rise structures. 
  • Type 4 – Ties for internal separating walls in dry environments. 

Using the wrong tie for your building’s height or exposure zone could lead to compliance issues and affect the longevity of the structure. Always refer to BS EN 845-1 standards when specifying ties for new builds. 

  1. Consider Materials and Coatings

Wall ties are commonly made from stainless steel due to its corrosion resistance, especially in damp or coastal environments. Galvanised steel is more affordable and suitable for low-risk, sheltered applications but may not offer the same long-term protection. 

If you’re working in aggressive environments or need enhanced durability, opt for stainless steel wall ties with austenitic grades for maximum corrosion resistance. 

  1. Don’t Forget Remedial Wall Ties

In existing buildings where the original ties have failed (often due to corrosion), remedial wall ties are essential. These are retrofitted into the cavity wall to restore structural integrity without needing to rebuild the wall. 

Speedy Fixings offers a range of remedial ties with mechanical or resin-fix options, depending on the wall type and accessibility. 

  1. Shop Quality Wall Ties at Speedy Fixings

Choosing the right wall tie ensures the structural performance and lifespan of your build. At Speedy Fixings, we offer a full selection of wall ties for every application, all manufactured to meet British Standards. 

Browse our wall ties online or contact us for expert support if you’re unsure which type is right for your project.