When to use floor level in Korean
Korean: 층[ cheung ]

When to use it
The word "층" means a floor or level in a building. You use it after a number to say where something is, like a home, classroom, or store. For example, 2층 means "the second floor."
Example sentences
우리 집은 3층이에요.
My home is on the third floor.
화장실은 2층에 있어요.
The bathroom is on the second floor.
교실은 4층에 있어요.
The classroom is on the fourth floor.
저는 1층에서 친구를 만나요.
I meet my friend on the first floor.
이 가게는 지하 1층에 있어요.
This store is on basement level 1.
호텔 방은 10층에 있어요.
The hotel room is on the tenth floor.