The side chambers [were] in three stories, one above the other, thirty chambers in each story; they rested on ledges which [were] for the side chambers all around, that they might be supported, but not fastened to the wall of the temple.

As one went up from story to story, the side chambers became wider all around, because their supporting ledges in the wall of the temple ascended like steps; therefore the width of the structure increased as one went up [from] the lowest [story] to the highest by way of the middle one.