King James Version
And the side chambers were three, one over another, and thirty in order; and they entered into the wall which was of the house for the side chambers round about, that they might have hold, but they had not hold in the wall of the house.English Standard Version
And the side chambers were in three stories, one over another, thirty in each story. There were offsets all around the wall of the temple to serve as supports for the side chambers, so that they should not be supported by the wall of the temple.New International Version
The side rooms were on three levels, one above another, thirty on each level. There were ledges all around the wall of the temple to serve as supports for the side rooms, so that the supports were not inserted into the wall of the temple.