In the Genesis account of Noah’s Ark, the vessel was 50 cubits wide.
Genesis 6:15 records the ark’s width alongside its length and height. The complete set of stated dimensions is 300 cubits long, 50 cubits wide, and 30 cubits high. Because the cubit was an ancient measurement whose length was not completely standardized, scholars and translators generally preserve the biblical unit rather than presenting one certain modern conversion.
The width helps establish the ark’s proportions. The biblical dimensions produce a long, boxlike vessel rather than a ship designed for speed or steering. Genesis focuses on the ark as a means of surviving the flood, not as a navigable craft with a stated destination.
Some popular retellings depict elaborate decks, sails, or a pointed hull. Genesis specifically mentions rooms, a door, and an opening, but many visual details found in later paintings and models are interpretations rather than measurements supplied by the text.