North Carolina Building Contractor License Practice Exam

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What is the minimum headroom required for stairs?

  1. 6 inches

  2. 8 inches

  3. 10 inches

  4. 12 inches

The correct answer is: 8 inches

The minimum headroom required for stairs is specified to ensure that individuals using the stairs can do so safely and comfortably without the risk of hitting their heads on overhead structures. While many building codes may offer variations, a common requirement is a minimum headroom of 80 inches (6 feet 8 inches) from the nosing of the treads to the ceiling above. Selecting the option indicating 8 inches is a misinterpretation, as the correct requirement is significantly higher than that—it does not provide adequate clearance. The appropriate headroom measurement is essential in constructing safe and accessible stairways in residential or commercial buildings, as inadequate headroom could lead to accidents or injuries. Understanding these standards is crucial for compliance with local building codes and ensuring safety in the built environment.