'Stories' in the Bible

The side chambers consisted of three stories, each above the other, with 30 chambers in each story. The side chambers extended out from the wall that faced the inside of the chambers where the chambers were fastened together, but the chamber walls were not fastened directly into the Temple walls themselves.

Opposite the 20 cubits wide inner court, and opposite the paved area that comprised the outer court, there were three stories of galleries that faced each other.