What was the final deck or level added to Noah's Ark in Genesis?

Genesis says Noah's Ark had a third deck.

Genesis 6:16 describes the ark as having lower, second, and third levels. In other words, the vessel had three decks in total. 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 ark's prescribed construction alongside its length, width, and height. It suggests that the interior was divided vertically into multiple spaces, but Genesis does not provide a detailed floor plan or explain exactly how animals and supplies were distributed among the levels.

A common mistake is to answer “second deck” because the text mentions a second level. However, the complete sequence is lower, second, and third, making the highest and final level a third deck. The answer describes the ark's structure in the biblical account, not a verified shipwreck reconstruction.