This is how you are to make it: the length of the ark 300 cubits,[5] its breadth 50 cubits, and its height 30 cubits.
(For only Og the king of Bashan was left of the remnant of the Rephaim. Behold, his bed was a bed of iron. Is it not in Rabbah of the Ammonites? Nine cubits[2] was its length, and four cubits its breadth, according to the common cubit.[3] )
The waters prevailed above the mountains, covering them fifteen cubits[4] deep.
Make yourself an ark of gopher wood.[4] Make rooms in the ark, and cover it inside and out with pitch.
Make a roof[6] for the ark, and finish it to a cubit above, and set the door of the ark in its side. Make it with lower, second, and third decks.