According to Genesis, what was the door of Noah's Ark made in?

According to Genesis, the door of Noah's Ark was made in the side.

Genesis 6:16 gives several structural instructions for the vessel and says it should have a door in its side. The same verse mentions a roof and three levels, creating a compact description of the ark's main features.

The text does not specify whether the door was centered, how large it was, or what mechanism operated it. Artistic depictions therefore vary widely, with some showing a tall entrance near the bow and others placing it elsewhere along the hull.

Genesis later says that Noah, his family, and the animals entered the ark, and that the Lord shut him in. This later detail is about the closing of the door, not its construction. A common mix-up is to assume the entrance was at the front because many modern ships are boarded there, but the biblical instruction explicitly places it in the side.