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 1006.2.1 · region [630,300]
7 ft
1/8" = 1'-0"
overlays live
A-2 assemblyB businessM mercantileS-1 storageegress pathoccupant load
12 / 16

Group B — required number of exits

IBC 1006.2.1IBC 2021LOCAL AMENDMENT
Pass
Measured1 required · 3 provided
RequirementMinimum exits based on occupant load; single-exit permitted only at or below OL 49.
Derivation

Group B OL = 4. Single-exit max = 49 (local amendment). Required exits = 1.

Adopted code text
Two exits or exit access doorways from any space shall be provided where the occupant load or the common path of egress travel distance exceeds the values in Table 1006.2.1.

Seattle Building Code (SBC) 2021, Section 1006 amendment

Single-exit occupant-load threshold lowered for Group M.

Model: Group M single-exit space permitted up to OL 49.Amended: Group M single-exit space permitted up to OL 30 where sales area exceeds 3,000 sq ft.
Sheet A2.1High confidence · 90%