CSLB C-9 Drywall (Trade Exam) — Study Guide
Free, topic-by-topic study notes for the CSLB C-9 Drywall (Trade Exam) exam. Read a chapter, then practice it.
Planning and Estimating
CSLB weights Planning and Estimating at about 18% of the C-9 exam: reviewing plans and specifications, estimating project costs and evaluating material specifications. Some questions require computation, and a calculator is provided. This page is a short survey; the PrepPass C-9 Drywall study guide teaches the section with worked estimates and a full practice exam at CSLB's weights.
Preparation, Framing, and Layout
CSLB weights Preparation, Framing, and Layout at about 14%: job site readiness, managing materials, layout, metal framing and backing. This page is a short survey; the PrepPass C-9 Drywall study guide covers each statement with worked examples.
Installation and Repair
Installation and Repair is the largest C-9 section at about 32%: ceilings, standard walls, fire-rated and specialty assemblies, trims and repairs. This page is a short survey; the PrepPass C-9 Drywall study guide teaches the code tables, calculated ratings and repair methods in depth.
Finishing
CSLB weights Finishing at about 17%: compounds, levels of finish, taping, coating, sanding or sponging and texture. This page is a short survey; the PrepPass C-9 Drywall study guide explains each step with manufacturer data and worked examples.
Safety
Safety is about 19% of the C-9 exam: personnel and job site procedures, tools and equipment, and work at heights under Cal/OSHA Title 8. This page is a short survey; the PrepPass C-9 Drywall study guide covers each rule with worked examples.
Practice by topic
Jump straight into free practice questions for any single CSLB C-9 Drywall (Trade Exam) topic.