number of people who can be seated in a specific space
Seating capacity is the highest number of people who can sit in a specific space. This limit can be either from the amount of space available, or from a law saying how many people are allowed to be there at a time.
Seating capacity can be for different kinds of things. It can be the number of people who can fit in a vehicle, for example an automobile or an airplane. It can also be for a stadium. The largest sports building in the world, the Indianapolis Motor Speedway, has a permanent seating capacity of more than 257,000 people. Seats can be added on the field to raise that number to about 400,000.