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Construction Guys · California contractor exam preparation
C-21 Building Moving & Demolition License Exam Book
Let's build this right.
Build a study plan that connects the rules, calculations and job decisions. Clifton Leung's plain-language guide walks you through demolition, building moving, crew protection and the business side of becoming a contractor.
$79.95 USD · one-time purchase
Printed, comb-bound book + included PDF.
Free shipping. Ships the next business day via FedEx.
By Clifton Leung · Construction Guys
36 chaptersTrade + Law & Business
500 questionsWith explained answers
280+ pagesIllustrated study and reference
Try a few lessons before you buy
Open the real pages.
Read the free 25-page preview: the complete contents, Clifton's introduction, construction math, structural load paths, building-moving calculations, selected safety-reference pages and explained answers to the sample chapter checks.
Read the building first
Follow an illustrated load path and learn why a member that looks inconvenient may be holding something up.
Understand the balance
Use a simple paper model to understand unequal support reactions and the limits of an exercise.
No sign-up required. Excerpts retain the full digital book's page numbers. This is a sample, not the complete book.
What you'll learn
From unfamiliar words to better exam decisions.
Plan and price the work
Measurements, estimating, scope, quantities, productivity, disposal, salvage, scheduling and margin.
Prepare the project
Permits, surveys, utilities, public protection, environmental notices, asbestos, lead and silica awareness.
Understand demolition
Structural systems, load paths, selective work, demolition planning, equipment, debris handling and excavation.
Study building moving
Feasibility, weight, balance, temporary support principles, transport routes and destination readiness.
Protect people
Source-linked safety references covering core demolition orders, falls, access, exposure controls, heat and emergency planning.
Build the business
Licensing, business organization, finance, employment, contracts, insurance, bonds, liens and public works.
Learn the reason behind the answer.
Includes a diagnostic, chapter checks, a 100-question applied workshop, two 40-question practice sets, and separate 100-question trade and Law & Business finals. Every question has an explanation. The final practice sets follow the published exam topic percentages.
These are original practice questions, not actual or recalled CSLB exam questions. This independent book is not affiliated with CSLB, PSI or Cal/OSHA and does not guarantee passing. Current laws, local requirements, qualifying experience and safe supervised practice still matter.
The complete chapter list
A clear route through the material.
Chapters 1–6: Start here, estimate and prepare
- I had to learn the hard way. You deserve a better start.
- A study plan that builds real understanding
- The math is manageable. Keep the units with it.
- Price the whole job, not just the machine.
- Permits and codes: know who controls what.
- Before the first machine: utilities, people and access
Chapters 7–12: Health hazards and structural understanding
- What you cannot see can still hurt the crew.
- Dust, noise and exposure: control the source.
- Read the building before you remove it.
- The demolition plan is the first tool.
- Take it down without losing control.
- Steel, special structures and careful recovery
Chapters 13–18: Equipment, debris and building moving
- Choose equipment for the real conditions.
- Debris has a route, a weight and a destination.
- Below the building: excavation and a clean finish
- Moving a building starts before the lift.
- Weight, balance and where the load goes
- Raising and lowering: support every transition
Chapters 19–24: Moving, crew protection and business
- The route is part of the moving system.
- Safety leadership: make the plan work.
- Falls, openings and safe ways to get there
- Plan for the day that does not go as planned.
- The license and the company are your responsibility
- Money: revenue is not your paycheck
Chapters 25–30: Build the company and practice
- Build a crew you can stand behind
- Contracts and changes: put the agreement on paper
- Insurance, bonds, liens, and getting paid
- Public works: different money, different rules
- The Bayview project: put the lessons together
- Two practice exams. Find your weak spots.
Chapters 31–36: Final exams, answers and reference tools
- C-21 Building Moving & Demolition final exam
- Law & Business final practice exam
- The answers matter. The reasons matter more.
- Keep the rules connected to the conditions.
- Go to the source. Keep your knowledge current.
- Pass the milestone. Keep building your future.
Also includes a 102-term glossary, reusable study worksheets, an answer sheet, a detailed learning map and 75 official source entries for further reference.
Your $79.95 book package
Delivered to your door
- One 284-page, comb-bound printed book.
- Free shipping.
- Ships the next business day via FedEx.
- Chapters start on the right for comfortable double-sided reading.
Included digital edition
- The complete 281-page searchable PDF.
- Clickable contents, bookmarks and question/answer navigation.
- Illustrated lessons, explained answers and source links.
- Access through your Construction Guys student library after purchase.
One purchase includes both formats. They contain the same lessons; page counts differ because of the digital cover and intentional print-layout blank pages.
The book explains licensing eligibility, the application route, scheduling, study preparation and next steps after testing. Passing an exam alone does not issue a contractor license. The safety reference summarizes core requirements; it is not every applicable code or an engineered demolition, building-moving or abatement plan.
Learn with people, too
Want help building your skills?
Construction Guys offers in-person training in the Bay Area, including hands-on trade and construction-business courses. Ask about current license-preparation options, dates, locations, prerequisites and tuition.
Courses are optional and sold separately. Book purchase does not include course enrollment, exam fees or a contractor license.
From Clifton Leung
I had to learn the hard way. You deserve a better start.
I started Construction Guys in 2015 with two friends and learned through plenty of tough lessons. I know what it feels like to have questions and nowhere to turn. This book is here to help you understand what you are studying, practice the decisions and keep building toward your own construction business.
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