Genesis 6:15
This is how you are to make it: The ark will be 450 feet long, 75 feet wide, and 45 feet high.
Genesis 7:20
The mountains were covered as the waters surged above them more than 20 feet.
Deuteronomy 3:11
(Only Og king of Bashan was left of the remnant of the Rephaim. His bed was made of iron.
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 mountains were covered as the waters surged above them more than 20 feet.
Deuteronomy 3:11
(Only Og king of Bashan was left of the remnant of the Rephaim. His bed was made of iron. Isn’t it in Rabbah of the Ammonites? It is 13 feet six inches long and six feet wide by a standard measure.)