The bottom floor was five cubits wide, the middle floor six cubits, and the third floor seven cubits. He also placed offset ledges around the outside of the temple, so that nothing would be inserted into its walls.
Jewish Publication Society of America Version (JPS1917) - 1 Kings 6:6 >the nethermost story of the side-structure was five cubits broad, and the middle was six cubits broad, and the third was seven cubits broad; for on the outside he made rebatements in the wall of the house round about, that the beams should not have hold in the walls of the house. —