Genesis 6:14-16
Genesis 6: 14 to 16
14 Make yourself an ark of gopher wood. Make rooms in the ark, and cover it inside and out with pitch.
15 This is how you are to make it: the length of the ark 300 cubits, its breadth 50 cubits, and its height 30 cubits.
16 Make a roof 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.