PDFWAC 51-50-1004
Section 1004—Occupant load.
Table 1004.5
Maximum Floor Area Allowance Per Occupant
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 | |
Fixed guideway transit and passenger rail systems Platform Concourse/lobby | 100 gross (See Section 3116) | |
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 | |
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 | |
a | Floor area in square feet per occupant. |
[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-23-102, § 51-50-1004, filed 11/15/23, effective 3/16/24; WSR 22-13-094, 23-12-103, and 23-20-023, § 51-50-1004, filed 6/14/22, 6/7/23, and 9/25/23, effective 3/15/24; 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.]