CSLB Trade — General Building (B) exam topics — the 5 content areas by weight
The CSLB Trade — General Building (B) exam is built from 5 weighted content areas. Focus your time where the weight is. Each area below links to a free study chapter and practice questions. These weights are how PrepPass has organized the material, not a figure published by the exam authority.
Core Trades
30%Framing & Structural
20%Safety
15%Finish Trades
20%Planning & Estimating
15%Ready to test yourself?
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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.
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Content-area weights are PrepPass’s own organization of the material. Where CSLB Trade — General Building (B) publishes an official outline, check it directly. Confirm current details with CSLB — California Contractors State License Board. Study aid, not a substitute for the official material. Last updated: August 2026.