How many decks did Noah’s Ark have in the Genesis flood narrative?

In the Genesis flood narrative, Noah’s Ark had three decks.

Genesis 6:16 describes the ark’s design and says it should have lower, second, and third decks. The verse also mentions a window or opening and a door in the side, although translations differ in how they render some architectural details.

The three-level design is part of the text’s practical description of the vessel, alongside its length, width, height, and waterproofing. Genesis gives the ark dimensions as 300 cubits long, 50 cubits wide, and 30 cubits high.

Later traditions and modern illustrations often portray the ark with multiple animal compartments, ramps, or elaborate internal structures. Those artistic reconstructions go beyond what Genesis specifies. The textual answer is simply three decks, sometimes phrased as three stories or levels.