The biblical Noah’s Ark account describes the ark as having three floors.
Genesis 6:16 gives the ark three levels, along with a roof and an opening or window. The verse presents these features as part of God’s instructions to Noah before the Flood. The three-floor design is separate from the ark’s overall length, width, and height, which Genesis also specifies.
The number three is sometimes confused with the number of sons Noah had: Shem, Ham, and Japheth. Those sons and their wives entered the ark with Noah, but they are not the reason the ark had three floors. The text does not provide a detailed floor plan or explain how animals were distributed between the levels.
The ark’s biblical measurements are given in cubits, while its construction details remain uncertain because the exact ancient length of a cubit is debated. The three-level description is therefore a textual fact, not a complete architectural blueprint.