Disabled Door Handles with a View on Door Knobs

Disabled door handles with a view on door knobs

Author: Carl Benson

Carl is the founder of Suffolk Latch Company, with a background in engineering and over 20 years’ experience in home hardware. He works closely with suppliers and designers alike to develop quality ironmongery that stands the test of time. (Read my full bio.)

Introduction

Designing disability-friendly door hardware is about ensuring everyone – including people with limited mobility, arthritis, or other disabilities – can easily open and close doors. From accessible door knobs to lever handles, choosing the right fittings can make a world of difference in a home or public building.

In this article, we’ll explore why traditional knobs often fall short, how UK accessibility laws address door furniture, and what to consider when selecting easy-to-use door handles. We’ll also take a look at a real-world scenario (multi-generational living with classic beehive knobs) and compare standards in other countries. The goal is to help you make informed decisions and choose ergonomic door handles that are not only stylish but inclusive for all users.

Table of contents

• UK accessibility regulations for door handles and knobs

• Why traditional door knobs pose accessibility challenges

– Grip, twist, and hand strength

– Latch mechanisms and force required

– Installation considerations (knuckle clearance)

• Real-world example: multi-generational living with beehive door knobs

• International accessibility standards (US, Germany, Australia)

• Installation and design best practices for accessible door hardware

• Useful links: UK accessibility rules and guidance

• Conclusion

UK accessibility regulations for door handles and knobs

When it comes to DDA compliant door furniture in the UK, three main pillars guide decision-making: the Disability Discrimination Act (DDA), Part M of the Building Regulations, and BS 8300. These frameworks define what accessible hardware looks like in legal and practical terms.

Equality Act 2010 (formerly DDA): Public buildings must ensure that physical features, like doors, do not create barriers. This law supports retrofitting knobs with accessible options if they pose a disadvantage.

Approved Document M: Part M sets requirements for accessibility in new builds and renovations. Door handles should be operable with one hand and minimal force. Levers with return-to-door designs are preferred, mounted at 900–1000 mm height.

BS 8300: This standard gives specific advice for architects and designers. Lever handles are favoured, ideally with at least 19 mm grip diameter and installed at 900 mm. Operability with a closed fist is a key test of compliance.

Why traditional door knobs pose accessibility challenges

Grip, twist, and hand strength

Door knobs require gripping and twisting, which can be difficult for those with arthritis, reduced strength, or smaller hands. Levers allow pushing down with a palm, wrist, or elbow – far easier for a broader range of users.

Latch mechanisms and force required

Unsprung knobs need a heavy latch spring to return to position, which increases resistance. By contrast, sprung levers paired with light-action latches or magnetic alternatives reduce force and effort dramatically.

Heavy Duty Tubular Latch

Magnetic Bathroom Sashlock

Installation considerations (knuckle clearance)

Knobs should be set further back on the door (usually 75 mm) to avoid scraping knuckles. Levers function well on standard backsets (64 mm), making them easier and safer to use – especially in tight door frames.

Real-world example: multi-generational living with beehive door knobs

In a Victorian home, unsprung beehive knobs were chosen for their period style. However, the grandmother struggled to use them, eventually getting stuck in a bathroom. Attempts to adapt the knobs with grip aids were unsatisfactory. The solution was to install traditional-style lever handles. Functionality improved instantly – now every family member, from children to seniors, could open doors with ease and confidence.

International accessibility standards (US, Germany, Australia)

USA: ADA guidelines require handles to be operable without tight grasping or twisting. Lever handles mounted between 865–1220 mm are standard.

Germany: DIN 18040 promotes universal design. Lever handles at 850 mm, with generous space around doors, are strongly encouraged.

Australia: AS 1428.1 mandates lever handles for new buildings, with installation heights between 900–1100 mm. Round knobs are non-compliant for accessibility.

Installation and design best practices for accessible door hardware

• Handle height: 900 mm from finished floor level is ideal.
• Clearance: At least 300 mm on the pull side for wheelchair access.
• Shape: Return-to-door lever styles offer better control and comfort.
• Visual contrast: Ensure the handle is visible against the door.
• Force: Use low-resistance latches and closers (under 22–30 N).
• Locking: Choose easy-turn thumbturn locks or magnetic mechanisms.
• Thresholds: Aim for less than 15 mm height with at least 800 mm clear width.

Useful links: UK accessibility rules and guidance

Approved Document M – Access to and Use of Buildings

BS 8300-2:2018 – BSI Knowledge

Equality Act 2010 – Official Guidance

Conclusion

Door handles may seem like a small decision, but they play a big role in accessibility. Lever handles offer ease of use for everyone – from young children to the elderly – and comply with modern standards. Whether retrofitting or building new, prioritising accessible hardware helps ensure safety, comfort, and dignity.

If you're currently using traditional knobs, consider where you could make simple upgrades. Swapping in a few levers with light-action latches could transform daily life – making every door in your home more welcoming and easier to use.