Know Your Building: IBC Chapter 3
Complete all 7 levels to master occupancy classification
Use Groups Overview
Introduction to the 10 major use groups (A, B, E, F, I, M, R, S, U, H) and how occupancy drives all code requirements.
Residential (R-1 to R-4)
Master the differences between hotels, apartments, single-family homes, and assisted living facilities.
Assembly (A-1 to A-5)
Learn when buildings with gatherings need assembly classification and which subcategory applies.
B, M, E, S, F, U
Classify offices, retail stores, schools, factories, storage, and utility buildings.
The 10% Rule
Determine when secondary spaces are accessory or require separate occupancy classification.
Fire Barriers
Design fire-rated separations between different occupancies using IBC Table 508.4.
Final Challenge
Design to most restrictive requirements and complete the chapter integration challenge.
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