On each side of a typical school bus, there are 13 rows of seats. But the type of vehicle determines how many rows of seats there are.
The people who make school buses decide how many people can fit on each one. They use the federal standard size of a school bus seat, which is 39 inches, to do the math. Along with the math, the type of school bus and the number of emergency exits are also taken into account.
The Type A school bus is much smaller and made for kids with special needs. Type C is the most common type of school bus. It has 72 seats for elementary school and 41 seats for high school. Both sides have 13 rows of seats, with 16 inches between each row. There are 15 or more rows of two seats on a Type D school bus, which is a longer version of a Type C school bus.