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PDFWAC 51-50-1006

Section 1006Number of exits and exit access doorways.

Table 1006.2.1
Spaces with One Exit or Exit Access Doorway
OCCUPANCY
MAXIMUM OCCUPANT
LOAD OF SPACE
MAXIMUM COMMON PATH OF EGRESS TRAVEL DISTANCE (feet)
Without Sprinkler System (feet)
With Sprinkler System (feet)
Occupant Load
OL ≤ 30
OL ≥ 30
Ac, Eh, M
49
75
75
75a
B
49
100
75
100a
F
49
75
75
100a
H-1, H-2, H-3
3
NP
NP
25b
H-4, H-5
10
NP
NP
75b
I-1, I-2d, I-4
10
NP
NP
75b
I-3
10
NP
NP
100a
R-1
10
NP
NP
75a
R-2
20
NP
NP
125a
R-3e
20
NP
NP
125a,g
R-4e
20
NP
NP
125a,g
Sf
29
100
75
100a
U
49
100
75
75a
For SI: 1 foot = 304.8 mm.
NP = Not Permitted.
 
a
Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2. See Section 903 for occupancies where automatic sprinkler systems are permitted in accordance with Section 903.3.1.2.
 
b
Group H occupancies equipped throughout with an automatic sprinkler system in accordance with Section 903.2.5.
 
c
For a room or space used for assembly purposes having fixed seating, see Section 1029.8.
 
d
For the travel distance limitations in Group I-2, see Section 407.4.
 
e
The common path of egress travel distance shall only apply in a Group R-3 occupancy located in a mixed occupancy building.
 
f
The length of common path of egress travel distance in a Group S-2 open parking garage shall be not more than 100 feet.
 
g
For the travel distance limitations in Groups R-3 and R-4 equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.3, see Section 1006.2.2.6.
 
h
Day care facilities, rooms or spaces where care is provided for more than 10 children that are 2 1/2 years of age or less, shall have access to not less than two exits or exit access doorways.
1006.2.1 Egress based on occupant load and common path of egress travel distance. Two exits or exit access doorways from any space shall be provided where the design occupant load or the common path of egress travel distance exceeds the values listed in Table 1006.2.1. The cumulative occupant load from adjacent rooms, areas or spaces shall be determined in accordance with Section 1004.2.
EXCEPTIONS:
1. The number of exits from foyers, lobbies, vestibules or similar spaces need not be based on cumulative occupant loads for areas discharging through such spaces, but the capacity of the exits from such spaces shall be based on applicable cumulative occupant loads.
 
2. Care suites in Group I-2 occupancies complying with Section 407.4.
 
3. Unoccupied mechanical rooms and penthouses are not required to comply with the common path of egress travel distance measurement.
1006.2.2.4 Group I-4 means of egress. This section is not adopted.
1006.2.2.7 Electrical equipment rooms. Rooms containing electrical equipment shall be provided with a second exit or exit access doorways as required by NFPA 70 Article 110 where all of the following apply:
1. The electrical equipment is rated at 1,200 amperes or more.
2. The electrical equipment is over 6 feet (1829 mm) wide.
3. The electrical equipment contains overcurrent devices, switching devices or control devices.
1006.3.3 Single exits. A single exit or access to a single exit shall be permitted from any story or occupied roof where one of the following conditions exists:
1. The occupant load, number of dwelling units and exit access travel distance within the portion of the building served by the single exit do not exceed the values in Table 1006.3.3(1) or 1006.3.3(2).
2. Rooms, areas and spaces complying with Section 1006.2.1 with exits that discharge directly to the exterior at the level of exit discharge, are permitted to have one exit or access to a single exit.
3. Parking garages where vehicles are mechanically parked shall be permitted to have one exit or access to a single exit.
4. Groups R-3 and R-4 occupancies shall be permitted to have one exit or access to a single exit.
5. Individual single-story or multistory dwelling units shall be permitted to have a single exit or access to a single exit from the dwelling unit provided that both of the following criteria are met:
5.1. The dwelling unit complies with Section 1006.2.1 as a space with one means of egress.
5.2. Either the exit from the dwelling unit discharges directly to the exterior at the level of exit discharge, or the exit access outside the dwelling unit's entrance door provides access to not less than two approved independent exits.
Table 1006.3.3(1)
Stories with One Exit or Access to One Exit for R-2 Occupancies
Story
Occupancy
Maximum Number of Dwelling Units
Maximum Exit Access Travel Distance
Basement, first, second, or third story above grade plane
R-2a,b
4 dwelling units
125 feet
Fourth story above grade plane and higher
NP
NA
NA
For SI: 1 foot = 304.8 mm.
NP = Not Permitted.
NA = Not Applicable.
 
a
Buildings classified as Group R-2 equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 and provided with emergency escape and rescue openings in accordance with Section 1030.
 
b
This table is used for R-2 occupancies consisting of dwelling units. For R-2 occupancies consisting of sleeping units, use Table 1006.3.3(2).
Table 1006.3.3(2)
Stories with One Exit or Access to One Exit for Other Occupancies
Story
Occupancy
Maximum Occupant Load per Story
Maximum Exit Access Travel Distance (feet)
First story above or below grade plane
A, Bb, E, Fb, M, U
49
75
H-2, H-3
3
25
H-4, H-5, I, R-1, R-2a,c
10
75
Sb,d
29
75
Second story above grade plane
B, F, M, Sd
29
75
Third story above grade plane and higher
NP
NA
NA
For SI: 1 foot = 304.8 mm.
NP = Not Permitted.
NA = Not Applicable.
 
a
Buildings classified as Group R-2 equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 and provided with emergency escape and rescue openings in accordance with Section 1030.
 
b
Group B, F and S occupancies in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 shall have a maximum exit access travel distance of 100 feet.
 
c
This table is used for R-2 occupancies consisting of sleeping units. For R-2 occupancies consisting of dwelling units, use Table 1006.3.3(1).
 
d
The length of exit access travel distance in a Group S-2 open parking garage shall be not more than 100 feet.
[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 20-21-021, § 51-50-1006, filed 10/9/20, effective 11/9/20; WSR 20-01-090, § 51-50-1006, filed 12/12/19, effective 7/1/20; WSR 16-03-064, § 51-50-1006, filed 1/19/16, effective 7/1/16.]
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