CSLB C-21 Building Moving and Demolition (Trade Exam) exam topics — the 5 content areas by weight
The CSLB C-21 Building Moving and Demolition (Trade Exam) 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.
Planning and Estimating
25%Project Preparation
20%Building Moving
13%Structure Demolition
21%Safety
21%Ready to test yourself?
Drill 260+ free CSLB C-21 Building Moving and Demolition (Trade Exam) practice questions across every content area, then sit a full timed mock exam — no signup required.
Practice stays free. The full CSLB C-21 Building Moving and Demolition study guide is the material itself, taught start to finish — a downloadable PDF + EPUB you keep.
Content-area weights are PrepPass’s own organization of the material. Where CSLB C-21 Building Moving and Demolition (Trade Exam) publishes an official outline, check it directly. Confirm current details with CSLB — C-21 study guide (13E-21). Study aid, not a substitute for the official material. Last updated: August 2026.