Pair
A pair has 2 doors in the same frame with no mullion between the doors and the doors swing in the same direction.
Exception: A pair could have a hardware mullion which is installed behind the doors (for the application of two rim exit devices).
Bank
A bank has 2 or more doors in the same frame.
If there are only 2 doors, there must be a mullion between the doors. The doors can swing in the same direction or in opposite directions as the doors operate independently of each other.
If there are 3 or more doors, the opening can be a combination of singles and pairs of doors. The pair of doors within the bank would not have a mullion between the doors and the doors would swing in the same direction like a normal pair of doors. The single doors can swing in opposite direction of the pair, or other singles, as it would operate independently.
Is “Double Egress” a Pair or Bank?
A double egress has 2 doors in the same frame with no mullion between the doors, but the doors swing in opposite directions. A special profile frame is required.
A double egress opening is considered a pair in the LaForce system because the doors do not have a mullion separating the two doors. Special consideration is used to ensure that the doors are beveled and undersized correctly to allow doors to open and close properly while they work independently of each other. Both doors have the same handing and are considered reverse beveled to work with exit devices or push plates. Pull side hardware should not be used to maintain flow of traffic.
See also our Door, Frame, and Hardware Glossary for any unfamiliar terminology!
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