What is the maximum allowable height for a stair with a single flight?

The maximum allowable height for a stair with a single flight is 12 feet. This measurement is essential to ensure safety and accessibility, particularly in residential and commercial buildings. Building codes, including those pertinent to stair design, often dictate specific limits on the height of a single flight to encourage visibility, comfort, and ease of ascent and descent for users.

While different jurisdictions may have variations in their building codes, many align with the 12-foot standard as a widely accepted guideline to minimize the risk of falls and other accidents. A height exceeding this limit would typically require additional safety measures, such as landings and railings, to ensure that the stairs comply with safety standards.

Understanding these parameters is crucial for contractors, as adherence to such regulations impacts both the safety of the construction and the legal compliance of the contractor's work.