The minimum width of stairways for Group B occupancy classification with an occupant load of more than 50 shall be not less than how many inches?

• A. 30
• B. 36
• C. 41 1/2
• D. 44

Answer: (D)

In Group B occupancy classifications, which typically include business environments where a significant number of occupants may need to evacuate quickly, the minimum width of stairways is crucial for ensuring safe and efficient egress during an emergency. The North Carolina Building Code specifies that for an occupant load exceeding 50, stairways must have a minimum width of 44 inches. This width accommodates the movement of multiple individuals simultaneously, reducing the risk of congestion and potential hazards during evacuation scenarios.

In larger occupancies, the increased width helps facilitate the quick and orderly exit of people, particularly during peak times when foot traffic is high. The requirement is based on safety standards designed to protect occupants and ensure that the means of egress are functional even under stress. Having sufficient width also allows safe access for emergency services if needed. Thus, adhering to this requirement is critical for maintaining safety in buildings classified under Group B.