MULTI-COMPONENT EGRESS CAPACITY
Standards
Sprinklers + EVACS (IBC reduction)
IBC only: permits 0.2 in/occ (stairs) and 0.15 in/occ (level) when fully sprinklered and with EVACS.
Calculation Direction
Total Occupant Load (for 50% main-exit check)
occ
IBC Summary
Total Capacity
—
Total Required Size
—
NFPA 101 Summary
Total Capacity
—
Total Required Size
—
Notes: Common capacity factors — IBC: stairs 0.3 in (or 0.2 in with sprinkler + EVACS); level components 0.2 in (or 0.15 in with sprinkler + EVACS). NFPA 101: stairs 0.3 in; level & ramps 0.2 in. Minimum clear widths still apply (e.g., IBC stair 44 in; door 32 in). Use judgment and local amendments.
PathComponentClear WidthIBC ResultNFPA 101 Result