Wash. Admin. Code § 51-11C-405054 - Table C405.4.2(2)-Interior lighting power allowances-Space-by-space method

Table C405.4.2(2)

Interior Lighting Power Allowances-Space-by-Space Method

Common Space-by-Space Typesa	LPD (w/ft2)
Atrium - Less than 20 feet in height	0.39
Atrium - 20 to 40 feet in height	0.48
Atrium - Above 40 feet in height	0.60
Audience/seating area - Permanenti
In an auditorium	0.61
In a gymnasium	0.23
In a motion picture theater	0.27
In a penitentiary	0.67
In a performing arts theater	1.16
In a religious building	0.72
In a sports arena	0.33
Otherwise	0.23
Banking activity areai	0.61
Breakroom (see lounge/breakroom)
Classroom/lecture hall/training room
In a penitentiary	0.89
Otherwiseh	0.71
Computer room, data center	0.94
Conference/meeting/multipurpose	0.97
Confinement cell	0.70
Copy/print room	0.31
Corridor
In a facility for the visually
impaired (and not used
primarily by the staff)b	0.71
In a hospital	0.71
In a manufacturing facility	0.41
Otherwisec,i	0.41
Courtroomc	1.20
Dining area
In a penitentiary	0.42
In a facility for the visually
impaired (and not used
primarily by the staff)b	1.27
In a bar/lounge or leisure
diningi	0.86
In cafeteria or fast food
dining	0.40
In a family dining areai	0.60
Otherwise	0.43
Electrical/mechanical	0.43
Emergency vehicle garage	0.52
Food preparation	1.09
Guest rooma,b	0.41
Laboratory
In or as a classroom	1.11
Otherwise	1.33
Laundry/washing area	0.53
Loading dock, interior	0.88
Lobbyc
In a facility for the visually
impaired (and not used
primarily by the staff)b	1.69
For an elevator	0.65
In a hotel	0.51
In a motion picture theater	0.23
In a performing arts theater	1.25
Otherwise	0.84
Locker room	0.52
Lounge/breakroomi
In a health care facilityc,i	0.42
Otherwisei	0.59
Office
Enclosed [LESS THAN EQUAL TO] 250	0.74
Enclosed [GREATER THAN] 250	0.66
Open plan	0.61
Parking area, interior	0.15
Pharmacy area	1.66
Restroom
In a facility for the visually
impaired (and not used
primarily by the staff)b	1.26
Otherwisei	0.63
Sales area	1.05
Seating area, general	0.23
Stairway (see space containing stairway)
Stairwellc,i	0.49
Storage room
< 50 ft2	0.51
50-100 ft2	0.38
All other storage	0.38
Vehicular maintenance	0.60
Workshop	1.26
Automotive (see vehicular
maintenance)
Convention center - Exhibit spacei	0.61
Dormitory living quartersa,b	0.50
Facility for the visually impairedb
In a chapel (and not used
primarily by the staff)b	0.70
In a recreation room (and not
used primarily by the staff)b	1.77
Fire stations
Sleeping quarters	0.23
Gymnasium/fitness center
In an exercise area	0.90
In a playing area	0.85
Health care facilityc,i
In an exam/treatment room	1.40
In an imaging room	0.94
In a medical supply room	0.62
In a nursery	0.92
In a nurse's station	1.17
In an operating room	2.26
In a patient room	0.68
In a physical therapy room	0.91
In a recovery room	1.25
Library
In a reading areai	0.96
In the stacks	1.10
Manufacturing facility
In a detailed manufacturing
area	0.80
In an equipment room	0.76
In an extra high bay area
(greater than 50-foot floor-
to-ceiling height)	1.42
In a high bay area (25 - 50-
foot floor-to-ceiling height)	1.24
In a low bay (< 25-foot
floor-to-ceiling height)	0.86
Museum
In a general exhibition areai	0.31
In a restoration room	1.10
Performing arts theater dressing/
fitting room	0.41
Post office - Sorting area	0.76
Religious buildings
In a fellowship halli	0.54
In a worship/pulpit/choir
area i	0.85
Retail facilities
In a dressing/fitting room	0.51
In a mall concourse	0.82
Sports arena - Playing area
For a Class 1 facilityd	2.94
For a Class 2 facilitye	2.01
For a Class 3 facilityf	1.30
For a Class 4 facility g	0.86
Transportation
In a baggage/carousel area	0.39
In an airport concourse	0.25
At a terminal ticket
counteri	0.51
Warehouse - Storage area
For medium to bulky
palletized items	0.33
For smaller, hand-carried items	0.69

For SI: 1 foot = 304.8 mm, 1 watt per square foot = 10.76 W/m².

^a In cases where both a common space type and a bng area specific space type are listed, the building area specific space type shall apply.

^b A facility for the visually impaired is a facility that is licensed or will be licensed by local or state authorities for senior long-term care, adult daycare, senior support or people with special visual needs.

^c Additional lighting power allowance of 0.2 watts per square foot for the purpose of highlighting art or exhibits. This additional power shall be permitted only where the specified lighting is installed in addition to and controlled separately from general lighting in accordance with Section C405.2.6. This additional power shall be used only for the specified luminaires and shall not be used for any other purpose and it shall not be added to any other space or the interior power allowance.

^d Class I facilities consist of professional facilities; and semiprofessional, collegiate or club facilities with seating for 5,000 or more spectators.

^e Class II facilities consist of collegiate and semiprofessional facilities with seating for fewer than 5,000 spectators; club facilities with seating between 2,000 and 5,000 spectators; and amateur league and high school facilities with seating for more than 2,000 spectators.

^f Class III facilities consist of club, amateur league and high school facilities with seating for 2,000 or fewer spectators.

^g Class IV facilities consist of elementary school and recreational facilities; and amateur league and high school facilities without provisions for spectators.

^h For classrooms, additional lighting power allowance of 4.50 W/lineal foot of white or chalk boards for directional lighting dedicated to white or chalk boards.

ⁱ Additional lighting power allowance of 0.15 W/ft² for ornamental lighting. Qualifying ornamental lighting includes luminaires that are specifically used in a decorative manner This additional power shall be permitted only where the specified lighting is installed in addition to and controlled separately from display or general lighting in accordance with Section C405.2.6. This additional power shall be used only for the specified luminaires and it shall not be added to any other space or the interior power allowance.

^j Where a space is designated as unfinished, neither the area nor the lighting power in the space shall be calculated as part of the LPA.

Notes

Wash. Admin. Code § 51-11C-405054

Amended by WSR 16-03-072, Filed 1/19/2016, effective 7/1/2016 Amended by WSR 19-24-040, Filed 11/26/2019, effective 7/1/2020 Amended by WSR 20-21-080, Filed 10/19/2020, effective 2/1/2021 Amended by WSR 22-14-091, Filed 7/1/2022, effective 7/1/2023

Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. 13-04-056, § 51-11C-405054, filed 2/1/13, effective 7/1/13.