The difference between stairwell, stairwell, elevator room, elevator room, front room, stairwell and elevator machine room

Stair refers to the position of the whole staircase in the building, which is sent down to the ground, including stairs and landing.

Stair hall refers to the first floor or bottom floor from the entrance hall to the first step of stairs. The space within this range belongs to the stair hall and is in the horizontal plane projected by the stairs.

The front room mostly refers to the space that belongs to the front room when entering the building. Entering the hotel is like the lobby.

Elevator room refers to the scope of elevator operation,

Elevator hall refers to the place or range where people stand while waiting for the elevator.

The elevator machine room is a room above the elevator, where all kinds of elevator control boxes and other spare parts are placed.

In fact, sometimes the staircase hall and the elevator hall are in the same place, and there is no clear distinction. In a building, you just need to know where it is, not so clearly.