Size of a Floor Translated

2. The outer tower(s) serve as residential areas for ordinary inhabitants, and the area of each floor of the outer towers is generally larger than that of the Earth's Americas.

5. The intermediate zone is a mix of regulars (selected) and rankers, in which non-selected (mainly the families of the selected) also live.
The zone is slightly smaller than the outer tower, with considerable variation between floors and some interaction with the outer tower.
The standard of living is much better than in the outer tower.