Genesis 6:15
This is how you should make it: The ark is to be 450 feet long, 75 feet wide, and 45 feet high.
Genesis 7:20
The waters rose more than twenty feet above the mountains.
Deuteronomy 3:11
Only King Og of Bashan was left of the remaining Rephaites. (It is noteworthy that his sarcophagus was made of iron. Does it not, indeed, still remain in Rabbath of the Ammonites? It is thirteen and a half feet long and six feet wide according to standard measure.)
Treasury of Scripture Knowledge
Summary
And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
Cubits
Bible References
Cubits
Genesis 7:20
The waters rose more than twenty feet above the mountains.
Deuteronomy 3:11
Only King Og of Bashan was left of the remaining Rephaites. (It is noteworthy that his sarcophagus was made of iron. Does it not, indeed, still remain in Rabbath of the Ammonites? It is thirteen and a half feet long and six feet wide according to standard measure.)