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 Table 1004.5 · region [40,70]
7 ft
1/8" = 1'-0"
overlays live
A-2 assemblyB businessM mercantileS-1 storageegress pathoccupant load
3 / 16

Dining Room — occupant load

IBC Table 1004.5IBC 2021
Pass
Measured184 occupants
RequirementOccupant load computed from floor area at the tabulated allowance for "Assembly, unconcentrated (tables/chairs)".
Derivation

2760 sq ft ÷ 15 (net) = 184 → 184 occupants

Adopted code text
The number of occupants shall be computed at the rate of one occupant per unit of area as prescribed in Table 1004.5. Where occupants from accessory areas egress through a primary space, the accessory occupant load shall be added.
Sheet A2.1High confidence · 96%

Design team question

Prep Area (Room 106) use classification

Room tagged "PREP" with tables shown. Classify as Assembly (A-2) accessory to dining, or as Business/food prep support?

Default applied: Assembly, unconcentrated — 15 net (conservative)

Drives occupant load and whether the space is added to the A-2 aggregate for exit count and separation.