The New John Gill Exposition of the Entire Bible1 Kings 7:3
And it was covered with cedar above the beams, that lay on
forty five pillars, fifteen in a row.
] On the second floor were three
rows of pillars, fifteen in a row, which made forty five, that stood to
east, north, and south; and upon these pillars beams, which were the
floor of the third story, over which was a roof of cedar wood.