What is the term for the area where elevator doors are installed?

The term for the area where elevator doors are installed is "entrance." This refers specifically to the space designated for the access to the elevator itself, which includes the door opening that passengers use to enter and exit the elevator cab. It is crucial for the design and functionality of the elevator system, as it affects both user experience and safety.

In contrast, other terms like "lobby" typically refer to a waiting area or reception space within a building, where people might gather but are not specifically tied to the installation of the elevator doors. "Foyer" is similar to a lobby but often describes an entry area that may serve multiple purposes unrelated to elevator access. "Evacuation zone" involves safety measures during emergencies and does not pertain to elevator access or door installation. Hence, "entrance" accurately captures the specific area associated with elevator door operation.