Reqired Numbersof Elevator Per Floor Per Occupant

The 5th floor is 4 stories above the level of exit discharge since the 1st floor is on the level of the exit discharge so a 4 story building would not require an elevator per chapter 10.

Reqired numbersof elevator per floor per occupant.

The occupant evacuation elevator lobby floor area also shall accommodate one wheelchair space of 30 inches by 48 inches. The occupant evacuation elevator lobby floor area shall accommodate at 3 square feet 0 28 m 2 per person not less than 25 percent of the occupant load of the floor area served by the lobby. A four story building has 2900 square feet per floor. Destination oriented elevators group passengers for the same destination to reduce wait and travel times.

The requirements of 407 apply to destination oriented elevators but some provisions or exceptions which are summarized here are unique to this type of elevator. When using a destination oriented elevator an occupant calls an elevator car by first indicating which floor they need usually on a keypad. The occupant evacuation elevator lobby shall accommodate 3 square feet per person not less than 25 percent of the occupant load of the floor area served by the lobby. Occupant evacuation elevator lobbies shall be able to house one wheelchair with a space of 30 inches by 48 inches for every 50 persons within the area the lobby serves.

Each occupant evacuation elevator lobby shall have minimum floor area as follows. Population to be served. An elevator is required. Lobby indicators designate which car to use which is programmed by the time of arrival.

An elevator is not required because each floor has less than 3000 square feet. One needs to know the number of people the elevators are to be planned for. A four story office building has 3500 square feet on the first floor and 2500 square feet on each of the other floors.