When it comes to designing accessible buildings, every detail matters — including something as seemingly simple as a door handle. First enacted under the Disability Discrimination Act (DDA) and later updated in the Equality Act 2010, lever handles must meet specific dimensional and usability standards to ensure that people of all abilities can use them comfortably and safely. Whether you’re an architect, designer, or contractor, understanding these guidelines is crucial for compliance and inclusivity. In this blog, we’ll explore the key dimensional requirements for DDA-compliant lever handles, highlighting best practices and common pitfalls to help you design spaces that are not only functional but truly accessible.
Dimensional Guidelines
In order to comply with BS 8300, the Guild of Architectural Ironmongers have set out clear stipulations and a number of dimensional guidelines that the design of lever handles should adhere to as follows:
- Hand grip zone – Minimum 95mm
- 45mm from face of door to back of handle
- Lever section – Minimum 19mm
- Minimum backset – 54mm
- Lever design; either return to door or with upturn
These recommendations were created so that lever handle designs:
- Allow the whole hand to hold the lever
- Are easy to hold without gripping
- Clear the frame-stop on closing face
- Stop hands sliding off and prevents clothing catching on the handle
Lever Designs
It should be noted that the round bar, return-to-door safety lever was never mandatory. It exemplified the optimum features, however many projects specified a return to door shape because it was the example used to demonstrate the dimensional guidelines in BS 8300-2.
In short, BS 8300 guidance doesn’t leave you stuck for choice – did you know that the double mitred lever handles below also comply?
