Genesis 6:15,16
And this is the fashion which you shall 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.
Torrey's Topical Textbook—AKJV

Deuteronomy 3:11
For only Og king of Bashan remained of the remnant of giants; behold his bedstead was a bedstead of iron; is it not in Rabbath of the children of Ammon? nine cubits was the length thereof, and four cubits the breadth of it, after the cubit of a man.
Torrey's Topical Textbook—AKJV