FUNCTION OF SPACE | OCCUPANT LOAD FACTORa |
Accessory storage areas, mechanical equipment room | 300 gross |
Agricultural building | 300 gross |
Aircraft hangars | 500 gross |
Airport terminal | |
| Baggage claim | 20 gross |
| Baggage handling | 300 gross |
| Concourse | 100 gross |
| Waiting areas | 15 gross |
Assembly | |
| Gaming floors (keno, slots, etc.) | 11 gross |
| Exhibit gallery and museum | 30 net |
| Billiard table/game table area | 50 gross |
Assembly with fixed seats | See Section 1004.6 |
Assembly without fixed seats | |
| Concentrated (chairs only - not fixed) | 7 net |
| Standing space | 5 net |
| Unconcentrated (tables and chairs) | 15 net |
Bowling centers, allow 5 persons for each lane including 15 feet of runway, and for additional areas | 7 net |
Business areas | |
| Concentrated business use areas | 150 gross (See Section 1004.8) |
Courtrooms - Other than fixed seating areas | 40 net |
Day care | 35 net |
Dormitories | 50 gross |
Educational | |
| Classroom area | 20 net |
| Shops and other vocational room areas | 50 net |
Exercise rooms | 50 gross |
Group H-5 fabrication and manufacturing areas | 200 gross |
Industrial areas | 100 gross |
Institutional areas | |
| Inpatient treatment areas | 240 gross |
| Outpatient areas | 100 gross |
| Sleeping areas | 120 gross |
Kitchens, commercial | 200 gross |
Library | |
| Reading rooms | 50 net |
| Stack area | 100 gross |
Locker rooms | 50 gross |
Mall buildings - Covered and open | See Section 402.8.2 |
Mercantile | 60 gross |
| Storage, stock, shipping areas | 300 gross |
| Group M art gallery | 30 gross |
Parking garages | 200 gross |
Residential | 200 gross |
Skating rinks, swimming pools | |
| Rink and pool | 50 gross |
| Decks | 15 gross |
Stages and platforms | 15 net |
Warehouses | 500 gross |
For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2. |
a | Floor area in square feet per occupant. |
[Statutory Authority: RCW
19.27.031 and
19.27.074. WSR 20-01-090, § 51-50-1004, filed 12/12/19, effective 7/1/20; WSR 19-02-038, § 51-50-1004, filed 12/26/18, effective 7/1/19; WSR 16-03-064, § 51-50-1004, filed 1/19/16, effective 7/1/16.]