‏ 1 Kings 7:2

2He built athe House of the Forest of Lebanon. Its length was a hundred cubits
A  cubit was about 18 inches or 45 centimeters
and its breadth fifty cubits and its height thirty cubits, and it was built on four
Septuagint three
rows of cedar pillars, with cedar beams on the pillars.
Copyright information for ESV