Here's what the Bible says about the ark's dimensions:
* Genesis 6:15: "This is how you are to build it: The ark is to be three hundred cubits long, fifty cubits wide and thirty cubits high."
A cubit is an ancient unit of measurement roughly equal to 18 inches. So, the ark was about 525 feet long, 87.5 feet wide, and 52.5 feet high.
Therefore, the number of floors in the ark is not mentioned in the Bible and remains a matter of speculation and interpretation.