The difference between corridor and stairwell

The difference between corridor and stairwell:

1, Corridor refers to a corridor or corridor that connects several units of a house and leads to various rooms or parts of a house or apartment.

2. Stairs refer to building components used to realize vertical traffic. Open staircase means that there is no door, and the staircase is directly connected with the traffic space such as corridor. A closed stairwell is like a staircase in a room, which is connected with traffic spaces such as corridors through a door. Smoke-proof stairwell is to add a closed space outside the closed stairwell, which is usually called smoke-proof front room. A Class-A fire door is set up in the smoke-proof front room, which is connected with traffic spaces such as corridors.