1 Kings 6:5-6

And against the walls all round, and against the walls of the Temple and of the inmost room, he put up wings, with side rooms all round: The lowest line of them being five cubits wide, the middle six cubits wide and the third seven cubits; for there was a space all round the outside walls of the house so that the boards supporting the rooms did not have to be fixed in the walls of the house.