Where partitions extend to within what percent of the ceiling height, the spaces separated by the partitions shall be considered as separate rooms?

Where partitions extend to within what percent of the ceiling height, the spaces separated by the partitions shall be considered as separate rooms?

• A. 10
• B. 20
• C. 15
• D. 25

Answer: (C)

Separating spaces into distinct rooms for occupancy and egress calculations depends on how far the partition reaches toward the ceiling. When a partition extends to within a small fraction of the ceiling height, the areas on either side are treated as separate rooms. The standard threshold used here is 15% of the ceiling height. So, if the ceiling is 8 feet high, a partition that comes within 1.2 feet of the ceiling makes the two sides count as separate rooms for code purposes. If the partition stops more than that from the ceiling, the spaces are considered a single room.

Separating spaces into distinct rooms for occupancy and egress calculations depends on how far the partition reaches toward the ceiling. When a partition extends to within a small fraction of the ceiling height, the areas on either side are treated as separate rooms. The standard threshold used here is 15% of the ceiling height. So, if the ceiling is 8 feet high, a partition that comes within 1.2 feet of the ceiling makes the two sides count as separate rooms for code purposes. If the partition stops more than that from the ceiling, the spaces are considered a single room.