What is the maximum distance a switch can be from the latch side of the door for PWD use?

The maximum distance a switch can be from the latch side of a door for people with disabilities (PWD) is crucial for ensuring accessibility and ease of use. The standard distance of 200 mm from the latch side ensures that individuals can easily reach the switch without any hindrance when opening or closing the door. This guideline is part of design considerations that aim to accommodate varying physical abilities, allowing those with disabilities to operate doors and switches effectively.

The dimensions specified in building laws are often determined by usability studies and best practices in accessibility design, ensuring that spaces are inclusive for all individuals. The 200 mm distance provides a balance, allowing access without complicating the door's function or the layout of nearby switches, enhancing the overall safety and convenience of the environment.