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Reviewed by Abraham Chen — Licensed California General Contractor (CSLB License #1101856 — verify)

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

  1. 1Core Trades30% of the exam
  2. 2Framing & Structural20% of the exam
  3. 3Safety15% of the exam
  4. 4Finish Trades20% of the exam
  5. 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.

Studying in order?

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.

Get the book — $29.99

Educational summary, not a substitute for the official material — always confirm current details with CSLB — California Contractors State License Board. Last updated: August 2026.

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