CSLB Trade — General Building (B) Study Guide (2026)
This is the free study guide for the CSLB Trade — General Building (B) exam — the same content areas the exam tests, written to the official outline. Read any chapter online free below, then drill the material with 700+ free practice questions and a full timed mock exam.
Last updated: August 2026.
Open the full study guideEvery chapter, in one place — free to read online.The 5 chapters
- 1Core Trades30% of the exam
- 2Framing & Structural20% of the exam
- 3Safety15% of the exam
- 4Finish Trades20% of the exam
- 5Planning & Estimating15% of the exam
Practice what you read
Reading is step one; recalling it under exam pressure is what passes. Drill free CSLB Trade — General Building (B) practice questions, then sit a full timed mock exam.

In the CSLB Class B — General Building (Trade Exam) guide: 400 practice questions with a worked explanation on every one, in a mixed practice exam and five chapter practice sets. Practice here stays free.
Learn it on the board: CSLB Class B General Building (From $14.84/mo) · Try Chapter B1 free
Educational summary, not a substitute for the official material — always confirm current details with CSLB — California Contractors State License Board. Last updated: August 2026.