What is the minimum width of a stairway measured above the height of the handrail?

The minimum width of a stairway measured above the height of the handrail is 36 inches. This measurement ensures safe passage for individuals using the stairs, allowing enough room for two people to pass each other comfortably, as well as ensuring that individuals carrying items can do so without the risk of falling or being unable to navigate the stairs effectively.

This dimension is part of building safety codes that are designed to minimize the risk of accidents on stairs. The specified width also allows adequate space for features such as handrails, which are crucial for users needing support when navigating stairs. While some building codes may specify different widths for particular applications, the general requirement for residential stairs is 36 inches. This width helps create a balance between safety and practicality in residential construction.