The minimum outside diameter for circular cross-section handrails is what measurement?

The minimum outside diameter for circular cross-section handrails is established to ensure that handrails are comfortable and safe for users to grip. A measurement of 1-1/4 inches is widely recognized as the standard, as this size allows for a good balance between functionality and ease of use. It provides adequate space for the fingers to grasp without being too small, which could lead to difficulty in holding or controlling the handrail, especially in situations where additional support is needed, such as in stairways or ramps.

Larger diameters can potentially be cumbersome and can lead to discomfort while smaller diameters may compromise safety and usability. The choice of 1-1/4 inches reflects industry guidelines and best practices that prioritize user safety and accessibility in commercial spaces.