FLORIDA DRYWALL CONTRACTOR LICENSING EXAM – PRACTICE TEST QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
Core Domains
1. Drywall Materials and Properties
2. Installation Methods and Framing Systems
3. Finishing, Taping, and Texture Applications
*4. Building Codes (Florida Building Code, Residential/Commercial)*
5. Estimating, Bidding, and Project Management
6. Safety Standards (OSHA, Fall Protection, Dust Control)
*7. Moisture Control, Vapor Barriers, and Fire-Rated Assemblies*
8. Contract Administration, Liens, and Business Law (Florida specific)
9. Ethics, Licensing Compliance, and Professional Conduct
10. Repair, Patching, and Remediation Scenarios
Introduction
This practice examination is designed to replicate the rigor and scope of the Florida Drywall Contractor Licensing
Exam. It assesses foundational theory, applied installation knowledge, Florida Building Code compliance, safety
regulations, and real-world decision-making. Questions include direct knowledge items, scenario-based problems,
and ethical dilemmas encountered on residential and commercial job sites. Each item requires critical thinking
about materials, methods, estimating, and legal responsibilities. The format follows a randomized distribution of
correct answers to simulate an authentic testing environment. Mastery of these questions indicates readiness for
state licensing requirements.
,SECTION ONE: QUESTIONS 1 – 100
Question 1
What is the minimum thickness required for gypsum board used on a ceiling with framing spaced 24 inches on
center, according to the Florida Building Code?
A. 1/2 inch
B. 5/8 inch
C. 3/8 inch
D. 1/4 inch
🟢B
🔴 RATIONALE: For 24-inch o.c. ceiling framing, 5/8-inch drywall is required to prevent sagging. Thinner panels
lack rigidity and may deflect over time.
Question 2
A drywall contractor notices water stains on existing gypsum board during a remodel. What is the first required
action before installing new board?
A. Cover stains with oil-based primer
B. Identify and stop the moisture source
C. Remove the stained section immediately
D. Install vapor barrier over the stains
🟢B
,🔴 RATIONALE: The source of moisture must be identified and corrected first; otherwise, new material will also
fail. Priming or covering without remediation is non-compliant with building code repair standards.
Question 3
Which screw spacing is permitted for attaching 5/8-inch Type X drywall to a fire-rated wall assembly with steel
studs 24 inches o.c.?
A. 8 inches on center in the field, 10 inches on edges
B. 12 inches on center in the field, 12 inches on edges
C. 16 inches on center in the field, 16 inches on edges
D. 6 inches on center in the field, 8 inches on edges
🟢B
🔴 RATIONALE: For fire-rated assemblies using 5/8-inch Type X on steel studs at 24 inches o.c., fastener spacing
is typically 12 inches o.c. in the field and 12 inches on edges as per GA-216 and Florida Building Code.
Question 4
A homeowner requests a bid for drywall installation in a garage attached to the living space. What type of
gypsum board is required on the garage side of the common wall?
A. Regular 1/2-inch drywall
B. Moisture-resistant drywall
C. 5/8-inch Type X fire-rated drywall
D. Flexible drywall
🟢C
, 🔴 RATIONALE: Attached garage walls separating from living areas require 5/8-inch Type X fire-rated drywall
per Florida Residential Code (R302.6) to provide a one-hour fire separation.
Question 5
Which method best controls dust during drywall sanding in an occupied medical office renovation?
A. Wet sanding all joints
B. Pole sander with standard paper
C. Vacuum-assisted sanding tools with HEPA filters
D. Open windows and use box fans
🟢C
🔴 RATIONALE: HEPA-filtered vacuum-assisted sanding is OSHA-recommended for silica dust control and
required in occupied sensitive environments. Other options fail to capture fine dust.
Question 6
According to Florida lien law, within how many days must a direct contractor serve a Notice of Commencement
to be protected for lien rights?
A. 10 days
B. 30 days
C. 45 days
D. 60 days
🟢B
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
Core Domains
1. Drywall Materials and Properties
2. Installation Methods and Framing Systems
3. Finishing, Taping, and Texture Applications
*4. Building Codes (Florida Building Code, Residential/Commercial)*
5. Estimating, Bidding, and Project Management
6. Safety Standards (OSHA, Fall Protection, Dust Control)
*7. Moisture Control, Vapor Barriers, and Fire-Rated Assemblies*
8. Contract Administration, Liens, and Business Law (Florida specific)
9. Ethics, Licensing Compliance, and Professional Conduct
10. Repair, Patching, and Remediation Scenarios
Introduction
This practice examination is designed to replicate the rigor and scope of the Florida Drywall Contractor Licensing
Exam. It assesses foundational theory, applied installation knowledge, Florida Building Code compliance, safety
regulations, and real-world decision-making. Questions include direct knowledge items, scenario-based problems,
and ethical dilemmas encountered on residential and commercial job sites. Each item requires critical thinking
about materials, methods, estimating, and legal responsibilities. The format follows a randomized distribution of
correct answers to simulate an authentic testing environment. Mastery of these questions indicates readiness for
state licensing requirements.
,SECTION ONE: QUESTIONS 1 – 100
Question 1
What is the minimum thickness required for gypsum board used on a ceiling with framing spaced 24 inches on
center, according to the Florida Building Code?
A. 1/2 inch
B. 5/8 inch
C. 3/8 inch
D. 1/4 inch
🟢B
🔴 RATIONALE: For 24-inch o.c. ceiling framing, 5/8-inch drywall is required to prevent sagging. Thinner panels
lack rigidity and may deflect over time.
Question 2
A drywall contractor notices water stains on existing gypsum board during a remodel. What is the first required
action before installing new board?
A. Cover stains with oil-based primer
B. Identify and stop the moisture source
C. Remove the stained section immediately
D. Install vapor barrier over the stains
🟢B
,🔴 RATIONALE: The source of moisture must be identified and corrected first; otherwise, new material will also
fail. Priming or covering without remediation is non-compliant with building code repair standards.
Question 3
Which screw spacing is permitted for attaching 5/8-inch Type X drywall to a fire-rated wall assembly with steel
studs 24 inches o.c.?
A. 8 inches on center in the field, 10 inches on edges
B. 12 inches on center in the field, 12 inches on edges
C. 16 inches on center in the field, 16 inches on edges
D. 6 inches on center in the field, 8 inches on edges
🟢B
🔴 RATIONALE: For fire-rated assemblies using 5/8-inch Type X on steel studs at 24 inches o.c., fastener spacing
is typically 12 inches o.c. in the field and 12 inches on edges as per GA-216 and Florida Building Code.
Question 4
A homeowner requests a bid for drywall installation in a garage attached to the living space. What type of
gypsum board is required on the garage side of the common wall?
A. Regular 1/2-inch drywall
B. Moisture-resistant drywall
C. 5/8-inch Type X fire-rated drywall
D. Flexible drywall
🟢C
, 🔴 RATIONALE: Attached garage walls separating from living areas require 5/8-inch Type X fire-rated drywall
per Florida Residential Code (R302.6) to provide a one-hour fire separation.
Question 5
Which method best controls dust during drywall sanding in an occupied medical office renovation?
A. Wet sanding all joints
B. Pole sander with standard paper
C. Vacuum-assisted sanding tools with HEPA filters
D. Open windows and use box fans
🟢C
🔴 RATIONALE: HEPA-filtered vacuum-assisted sanding is OSHA-recommended for silica dust control and
required in occupied sensitive environments. Other options fail to capture fine dust.
Question 6
According to Florida lien law, within how many days must a direct contractor serve a Notice of Commencement
to be protected for lien rights?
A. 10 days
B. 30 days
C. 45 days
D. 60 days
🟢B
