DRAFTSMAN

Capitol Hill Office Fit-Out

Seattle, WA · IBC 2021

Findings

Height & Area
1
Fire Resistance
1
Occupant Load
6
Egress Capacity
3
Exit Count
1
Common Path
1
Travel Distance
2
Corridor Rating
1
Dining RoomA-2 · 2760 sfBar / StandingA-2 · 640 sfPrep AreaA-2 · 520 sfKitchenA-2 · 1360 sfDry StorageS-1 · 560 sfManager OfficeB · 480 sf1841283572472"36"34"168 ft262 ft64 ft
EVIDENCE · Sheet A2.1 · IBC 1020.2 · region [380,300]
7 ft
1/8" = 1'-0"
overlays live
A-2 assemblyB businessM mercantileS-1 storageegress pathoccupant load
16 / 16

Corridor fire-resistance rating

IBC 1020.2IBC 2021
Pass
Measured0 hr required (sprinklered)
RequirementCorridors serving more than 30 occupants require a rating unless sprinklered per the table.
Derivation

Building OL = 360; threshold = 30. Sprinklered = yes → required rating 0 hr.

Adopted code text
Corridors shall have a fire-resistance rating in accordance with Table 1020.2. Corridor walls are permitted to be unrated where the occupant load served is 30 or fewer, or where the building is protected throughout by an automatic sprinkler system per the conditions in the table.
Sheet A2.1Medium confidence · 88%