Stairways for Group B occupancy classification must maintain a headroom clearance of at least how many inches?

• A. 72
• B. 78
• C. 80
• D. 84

Answer: (C)

In Group B occupancy classifications, the North Carolina Building Code specifies that stairways must have a minimum headroom clearance of 80 inches. This requirement is in place to ensure the safety and comfort of individuals using stairways, as adequate headroom minimizes the risk of head injuries and improves accessibility for all users. Having a standard of 80 inches helps accommodate a wide range of individuals and their potential height variations, which is essential in public and commercial buildings where Group B classifications are typical.

Other options present varying measurements that do not meet the established standard for headroom clearance in these settings. Lower clearances could lead to safety concerns, limiting the space available for safe passage and increasing the likelihood of accidents in high-traffic areas.