Kansas Carpentry Contractor Exam
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. What is the minimum width for a residential stair tread according to
typical building codes?
A. 8 inches
B. 9 inches
C. 10 inches
D. 11 inches
B. 9 inches
Rationale: Most residential building codes require a minimum tread
width of 9 inches for safety and usability.
2. Which type of lumber is generally used for framing interior walls?
A. Redwood
B. Spruce-pine-fir
C. Oak
D. Teak
B. Spruce-pine-fir
Rationale: SPF is commonly used for framing due to its strength,
availability, and cost-effectiveness.
3. What is the maximum allowable rise for a residential stair step?
A. 7 inches
B. 7 ¾ inches
C. 8 inches
D. 8 ¼ inches
B. 7 ¾ inches
, Rationale: Building codes set the maximum stair rise at 7 ¾ inches to
ensure safety.
4. When installing wall studs, what is the standard spacing for residential
construction?
A. 12 inches on center
B. 16 inches on center
C. 18 inches on center
D. 24 inches on center
B. 16 inches on center
Rationale: 16 inches on center is the most common spacing for studs
to support walls and align with sheathing and drywall.
5. What type of joint is typically used at the corners of wood framing?
A. Dovetail joint
B. Butt joint
C. Lap joint
D. Mortise and tenon
B. Butt joint
Rationale: Butt joints are standard in framing because they are
simple and effective when reinforced with nails or screws.
6. Which nail is most appropriate for framing lumber?
A. Finish nail
B. Common nail
C. Brad nail
D. Roofing nail
B. Common nail
Rationale: Common nails are thick and strong, making them suitable
for framing structural lumber.
7. What is the main purpose of a sill plate?
A. To provide a decorative trim
B. To anchor the wall to the foundation
C. To hold the roof in place
D. To support flooring only
B. To anchor the wall to the foundation
Rationale: The sill plate is bolted to the foundation to secure walls
and distribute loads.
, 8. Which type of plywood is best for exterior sheathing?
A. CDX
B. OSB
C. MDF
D. Particleboard
A. CDX
Rationale: CDX plywood is designed for exterior use; it resists
moisture and provides structural strength.
9. When measuring a board, which tool provides the most precise
measurement?
A. Speed square
B. Tape measure
C. Framing square
D. Caliper
D. Caliper
Rationale: Calipers offer precise measurements, though tape
measures are common for general cuts.
10. What is the proper sequence when installing wall sheathing?
A. Bottom to top, overlapping seams
B. Top to bottom, overlapping seams
C. Random placement
D. Bottom to top, no overlaps
A. Bottom to top, overlapping seams
Rationale: Overlapping seams from bottom to top ensures water
shedding and structural integrity.
11. What is the most common spacing for ceiling joists in residential
construction?
A. 12 inches on center
B. 16 inches on center
C. 24 inches on center
D. 32 inches on center
B. 16 inches on center
Rationale: 16 inches is standard for most residential joists to support
loads and align with drywall and insulation.
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. What is the minimum width for a residential stair tread according to
typical building codes?
A. 8 inches
B. 9 inches
C. 10 inches
D. 11 inches
B. 9 inches
Rationale: Most residential building codes require a minimum tread
width of 9 inches for safety and usability.
2. Which type of lumber is generally used for framing interior walls?
A. Redwood
B. Spruce-pine-fir
C. Oak
D. Teak
B. Spruce-pine-fir
Rationale: SPF is commonly used for framing due to its strength,
availability, and cost-effectiveness.
3. What is the maximum allowable rise for a residential stair step?
A. 7 inches
B. 7 ¾ inches
C. 8 inches
D. 8 ¼ inches
B. 7 ¾ inches
, Rationale: Building codes set the maximum stair rise at 7 ¾ inches to
ensure safety.
4. When installing wall studs, what is the standard spacing for residential
construction?
A. 12 inches on center
B. 16 inches on center
C. 18 inches on center
D. 24 inches on center
B. 16 inches on center
Rationale: 16 inches on center is the most common spacing for studs
to support walls and align with sheathing and drywall.
5. What type of joint is typically used at the corners of wood framing?
A. Dovetail joint
B. Butt joint
C. Lap joint
D. Mortise and tenon
B. Butt joint
Rationale: Butt joints are standard in framing because they are
simple and effective when reinforced with nails or screws.
6. Which nail is most appropriate for framing lumber?
A. Finish nail
B. Common nail
C. Brad nail
D. Roofing nail
B. Common nail
Rationale: Common nails are thick and strong, making them suitable
for framing structural lumber.
7. What is the main purpose of a sill plate?
A. To provide a decorative trim
B. To anchor the wall to the foundation
C. To hold the roof in place
D. To support flooring only
B. To anchor the wall to the foundation
Rationale: The sill plate is bolted to the foundation to secure walls
and distribute loads.
, 8. Which type of plywood is best for exterior sheathing?
A. CDX
B. OSB
C. MDF
D. Particleboard
A. CDX
Rationale: CDX plywood is designed for exterior use; it resists
moisture and provides structural strength.
9. When measuring a board, which tool provides the most precise
measurement?
A. Speed square
B. Tape measure
C. Framing square
D. Caliper
D. Caliper
Rationale: Calipers offer precise measurements, though tape
measures are common for general cuts.
10. What is the proper sequence when installing wall sheathing?
A. Bottom to top, overlapping seams
B. Top to bottom, overlapping seams
C. Random placement
D. Bottom to top, no overlaps
A. Bottom to top, overlapping seams
Rationale: Overlapping seams from bottom to top ensures water
shedding and structural integrity.
11. What is the most common spacing for ceiling joists in residential
construction?
A. 12 inches on center
B. 16 inches on center
C. 24 inches on center
D. 32 inches on center
B. 16 inches on center
Rationale: 16 inches is standard for most residential joists to support
loads and align with drywall and insulation.
