What is the recommended maximum height of a stair rise to ensure safety according to PD 1096?

In the context of PD 1096, which establishes safety standards for building design, the recommended maximum height of a stair rise is set at 200 mm. This limit is crucial for ensuring that stairs are safe and accessible for all users. A stair rise that is too high can pose a tripping hazard and can be particularly challenging for individuals with mobility issues, the elderly, or children.

By maintaining a maximum rise of 200 mm, building designers can help ensure that stairs are comfortable to navigate, reducing the risk of accidents and injuries. This standard is part of broader guidelines that also include considerations for the width of stairs, tread depth, and handrail height, all of which contribute to the overall safety and usability of stairways in buildings.