How many floors or decks does Genesis describe for Noah’s Ark?

Genesis describes Noah’s Ark as having three decks.

Genesis 6:16 instructs Noah to make the Ark with lower, second, and third decks. The same passage also mentions a window and a door, alongside the Ark’s rooms and its overall dimensions. These details form the biblical description of the vessel’s internal arrangement.

The three-level design is sometimes confused with other numbers in the story. Genesis gives 300 cubits for length, 50 cubits for width, and 30 cubits for height, while the Flood narrative includes several periods of seven and 40. None of those numbers changes the stated number of decks.

Artists and builders have interpreted the Ark’s internal layout in many ways because Genesis does not provide a complete architectural blueprint. Replicas may add ramps, animal stalls, lighting, or structural supports that are not specified in the text. The textual answer remains three decks: lower, second, and third.