The HRT225 is a wall tie for use in the external walls of houses not greater than 10 metres in height. Altitude and wind speed restrictions apply. It is also a Type A tie for internal separating walls of buildings of any height (cavities: 50-100mm; 125-150mm).
- 225mm for cavity 76-100mm
- 250mm for cavity 101-125mm
- 275mm for cavity 126-150mm
