ICC B1 General Building exam - how long did you actually study?

by marcus_t 83 views4 replies
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marcus_tOP
May 26, 2026

Taking the ICC B1 General Building exam in about 6 weeks and I'm trying to figure out if that's enough time. I've got about 2 hours each evening plus weekends. Passed my state journeyman test a few years back but the ICC format feels different - more code reference heavy than anything I've taken before.

I scored 62% on my first practice run through 2021 IBC chapters 1-6. I know I need 75% to pass and most people say aim for 80%+ before scheduling. Egress and occupancy classification are killing me - I keep confusing the assembly group subcategories.

My plan is to tab the IBC and IRC heavily and practice open-book speed. Has anyone taken B1 recently? I've heard it's strictly timed at 3.5 hours for 80 questions. Any section worth prioritizing over others?

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sophie_m
May 26, 2026

Six weeks is doable if you're consistent. I passed B1 after 5 weeks at about 90 minutes a night. Tabbing your code book is the key - I used color tabs by chapter and shaved at least 20 seconds per lookup on the actual exam.

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chloe_g
May 28, 2026

Don't underestimate structural loads questions - I got at least 12 of them on my attempt. Chapter 16 of the IBC is worth a dedicated weekend. I went in at 78% on practice tests and finished the real thing at 81%.

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devonte_h
May 28, 2026

Occupancy classification got me the first time - failed at 73%. Second attempt I spent three days just on Table 302.1 and related exceptions. Passed at 79% on the retake.

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priya_s
May 29, 2026

Open-book sounds easier than it is because time pressure is real. Practice navigating the index quickly, not just reading content. I set a 2.5-minute timer per question during practice and it helped a lot.

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