The DDA Range has been developed to meet the requirements of the Equality Act 2010 (formerly the Disability Discrimination Act) and Part M of the UK Building Regulations. These regulations require public and commercial buildings to provide safe and accessible environments for everyone, including people with disabilities.
According to these guidelines, handrails should typically have an external diameter between 40 mm and 45 mm. Our DDA handrail system uses 42.4 mm horizontal tubes (handrails) and 48.3 mm vertical tubes (uprights), providing the correct balance between structural strength and accessibility compliance.
Why choose DDA key clamp fittings?
Standard key clamps sit around the tube and create a visible external collar at each joint. While suitable for most projects, this design interrupts the smooth surface required for accessible handrails.
The DDA range uses specially designed connectors that create a smooth and continuous handrail. The fittings connect inside the tube, ensuring a flush transition between sections without any external bulge. This allows users to move their hand along the rail safely and comfortably.
Accessible and compliant handrail systems
DDA handrail systems are designed to provide a continuous guide for users, including those who are visually impaired or require additional support while moving through a building or public space.
All DDA fittings are hot-dip galvanised as standard, offering excellent corrosion resistance for both indoor and outdoor installations. For projects that require a specific visual finish, fittings can also be supplied in RAL powder-coated colours (subject to quantity and availability). Powder coating can also provide a warmer surface to the touch in colder environments.
Typical applications for the DDA range
DDA-compliant handrail systems are commonly used in locations where accessibility and safety are essential:
- Public buildings and entrances
- Hospitals, care homes and healthcare facilities
- Schools and educational buildings
- Access ramps and stairways
- Transport hubs and pedestrian walkways
DDA handrail expertise
At Keyclampshop.co.uk, we supply a complete range of DDA handrail fittings that integrate seamlessly with galvanised steel tubes. Whether you are designing a new accessible handrail system or upgrading an existing installation to meet DDA requirements, our team can help you select the correct components and layout.
All components are available from UK stock for fast delivery across the United Kingdom.




















