Additional classroom above 36 — per classroom
Added to a school package with the school fee; not sold on its own. For each classroom above 36, with the up-to-36-classrooms-and-a-hall tier; quantity = the number of extra classrooms.
Counts are confirmed at the first visit: any excess is charged and any shortfall refunded, and the price is fixed for one year. Repairs and parts are not included; you get their price before any work.