ICC B1
How our ICC B1 questions are written
Written in our own words
Every ICC B1 question is written by us to ICC's current published outline, with code references to IRC 2024. We never use real or recalled exam questions, and we never copy code-book text. Code is cited by section number so you can look it up in your own copy.
Reference basis: IRC 2024.
What the question bank covers
The course has 426 practice questions. Here is how many sit in each blueprint domain.
- Code Administration: 24 questions
- Building Planning: 39 questions
- Footings and Foundations: 61 questions
- Floor Construction: 57 questions
- Wall Construction and Coverings: 105 questions
- Roof/Ceiling Construction: 72 questions
- Public Safety and Special Construction: 68 questions
How explanations work
Every question comes with an explanation that names the code section or source it relies on, so you can check it against your own copy.
The ICC B1 course
Available now · instant accessThe ICC B1 course
- 7modules of lessonsEvery task on the outline
- 4full-length timed exams60 questions in 120 minutes each
- 426practice questionsEach one explained
- 4worked calculationsStep by step
- 8timed code lookups a setFind it fast in IRC, with your median time
- 1week-by-week study planSet to your exam date
Turn a practice answer into a study step. In untimed practice, ask Plumb AI about any question you answer, follow up, then see your weakest topics and what to drill next.
Terms and refunds · Secure checkout by Stripe · Billed by Nori Software
Every answer comes with a full explanation.
Think an answer is wrong? Report it. Not affiliated with or endorsed by International Code Council. Exam names are used descriptively.