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Building Code Guides

Free building-code guides for architects, engineers, and designers.

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Egress & Occupancy

How Occupant Load Is Calculated Under the IBC

Occupant load under IBC 1004 is floor area divided by the occupant load factor for each use. Here's how to calculate it, with examples.

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Egress & Occupancy

Means of Egress Under the IBC: Requirements & Common Mistakes

A means of egress is the continuous path to a public way — exit access, exit, and exit discharge. How occupant load sets exit count, width, and separation under IBC Chapter 10.

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