Here are some other ways to say "floor" in French, depending on the context:
* Le plancher: This refers to the wooden floorboards.
* Le parquet: This is also a type of wooden floor, but usually refers to a specific type of parquet flooring.
* Le carrelage: This refers to tiled floors.
* Le tapis: This refers to a carpet.
* L'étage: This refers to a specific level or story in a building.
You can also say "le niveau" (level) or "le niveau supérieur" (upper level) if you are referring to a specific floor in a building.