Which code should be used for two adjacent rooms with a connecting door?

Which code should be used for two adjacent rooms with a connecting door?

• A. F1
• B. C1
• C. E1
• D. N1

Answer: (B)

When space codes reflect how rooms relate to each other, a pair that sits adjacent and has a door directly connecting them is treated as a communicating or connected set of spaces. The code that conveys this relationship uses a prefix indicating connection, followed by a standard numeric suffix. That’s why the code with the communicating prefix and the 1 suffix is the best fit for two adjacent rooms with a connecting door. It clearly communicates that the spaces are linked and accessible from one another. Other prefixes describe different relationships (not connected or not adjacent) and wouldn’t accurately describe a door-connected pair.

When space codes reflect how rooms relate to each other, a pair that sits adjacent and has a door directly connecting them is treated as a communicating or connected set of spaces. The code that conveys this relationship uses a prefix indicating connection, followed by a standard numeric suffix. That’s why the code with the communicating prefix and the 1 suffix is the best fit for two adjacent rooms with a connecting door. It clearly communicates that the spaces are linked and accessible from one another. Other prefixes describe different relationships (not connected or not adjacent) and wouldn’t accurately describe a door-connected pair.