1 Kings 6:8-10

8The door for the middle chamber was in the right side of the house: and they went up with winding stairs into the middle chamber, and out of the middle into the third.1

9So he built the house, and finished it; and covered the house with beams and boards of cedar.2

10And then he built chambers against all the house, five cubits high: and they rested on the house with timber of cedar.