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51-50-1003 << 51-50-1004 >> 51-50-1005

Agency filings affecting this section

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.]