CSLB C-6 Cabinet, Millwork and Finish Carpentry (Trade Exam) Practice Test

CSLB Cabinet, Millwork and Finish Carpentry (C-6) Trade Examination — Exam facts
Administering bodyContractors State License Board (CSLB), California Department of Consumer Affairs — exam delivered by PSI Services LLC

Source: CSLB — Examinations Frequently Asked Questions

QuestionsNot published by CSLB

What we read and found nothing in: CSLB — Step 7: Studying for the Examination

Time limit210 minutes

Source: CSLB — Examinations Frequently Asked Questions

Passing scoreNot published by CSLB

What we read and found nothing in: CSLB — Step 7: Studying for the Examination

Fees
  • $450 — Original application (exam or waiver, one classification) (CSLB, one-time)
  • $51.43 — Examination registration (each registration, first attempt or retake) (PSI Services LLC, per attempt)
  • $200 — Initial license fee (sole owner) (CSLB, one-time)
  • $350 — Initial license fee (non-sole owner: partnership, corporation, LLC, joint venture) (CSLB, one-time)

Source: CSLB — List of All CSLB Fees

Languages offeredEnglish

Source: CSLB — Examinations Frequently Asked Questions

Exam facts, with a source for every line

Frequently asked questions

How many CSLB Trade — Cabinet, Millwork and Finish Carpentry (C-6) practice questions are here?+

A full bank of original CSLB Trade — Cabinet, Millwork and Finish Carpentry (C-6) practice questions across the official content areas, weighted like the real exam, with explanations. Free, no signup.

What is the CSLB Trade — Cabinet, Millwork and Finish Carpentry (C-6) exam like?+

A multiple-choice exam, 210 minutes. Practice by topic here, then take the full timed mock exam to gauge readiness.

Are these the real exam questions?+

No. Every question is 100% original, written from public primary sources with explanations. We never copy real exam questions or paid prep material.

Can I study in Chinese or Spanish?+

PrepPass practice is in English, 中文 and Español. The official exam is in English — switch the question language to English any time to rehearse the exact terminology you'll see on test day.

Sample practice questions

A few sample questions from this free bank, with full explanations. Use the practice tool above for the whole set.

  1. 1. Planning and Estimating

    Which item does the CSLB's C-6 definition name among the products a cabinet, millwork and finish carpentry contractor makes?

    • a.Sashes
    • b.Structural headers
    • c.Roof trusses
    • d.Exterior stair stringers

    Answer: a

    Explanation: The C-6 definition lists cabinets, cases, sashes, doors, trims and nonbearing partitions. Roof trusses and structural headers are framing work, and exterior staircases are named in the C-5 framing and rough carpentry classification.

    Source: Cal. Code Regs. tit. 16 §832.06 (C-6 classification, CSLB)

  2. 2. Planning and Estimating

    A cut list has eight pieces of 1-inch stock, each 3 inches wide and 48 inches long. What is the net board footage?

    • a.1 board foot
    • b.96 board feet
    • c.12 board feet
    • d.8 board feet

    Answer: d

    Explanation: Each piece is 1 × 3 × 48 = 144 cubic inches, which is exactly 1 board foot, so eight pieces are 8 board feet. One board foot counts a single piece; 96 forgets to divide by 12 after converting the length to feet (1 × 3 × 4 × 8); and 12 confuses the count.

    Source: Wood Handbook (FPL-GTR-282), board foot definition

  3. 3. Cabinetry and Millwork Fabrication

    Which statement about hardwoods and softwoods is supported by the Wood Handbook?

    • a.The names are botanical
    • b.Hardwoods are evergreen trees
    • c.Hardwoods are harder than softwoods
    • d.Softwoods contain vessels; hardwoods do not

    Answer: a

    Explanation: The Wood Handbook explains that hardwoods are angiosperms and softwoods gymnosperms, and that some softwoods, such as longleaf pine and Douglas-fir, are harder than some hardwoods. Hardwoods, not softwoods, contain vessels, and temperate hardwoods are usually deciduous, not evergreen.

    Source: Wood Handbook (FPL-GTR-282), hardwoods and softwoods

  4. 4. Cabinetry and Millwork Fabrication

    Which laminate grade is intended for light-duty, semi-exposed cabinet interiors under the federal casework guide specification?

    • a.VGS, vertical general purpose
    • b.HGS, horizontal general purpose
    • c.HGP, horizontal postformable
    • d.CLS, cabinet liner standard

    Answer: d

    Explanation: The guide specification describes cabinet liner standard grade, 0.020 inch, as intended for light-duty semi-exposed interior surfaces. HGS is for horizontal surfaces, VGS for exposed vertical surfaces, and HGP for postformed horizontal surfaces.

    Source: UFGS 06 41 16.00 10 (laminate grades)

  5. 5. Cabinetry and Millwork Fabrication

    Under the federal casework guide specification, what is the minimum ANSI/BHMA A156.9 grade for cabinet hardware, outside schools and hospitals?

    • a.No grade is specified
    • b.Grade 2
    • c.Grade 3
    • d.Grade 1

    Answer: b

    Explanation: The guide specification requires cabinet hardware to meet ANSI/BHMA A156.9 Grade 2 at a minimum, with Grade 1 for school and hospital applications. Grade 3 is below the stated minimum, and a grade is specified.

    Source: UFGS 06 41 16.00 10 (cabinet hardware)

  6. 6. Cabinet Installation

    How long must a renovation firm keep records showing it followed the RRP rule?

    • a.5 years after completing the renovation
    • b.3 years after completing the renovation
    • c.Until the home is sold
    • d.1 year after completing the renovation

    Answer: b

    Explanation: Firms must keep records demonstrating compliance for 3 years following completion of the renovation. One year is too short; 5 years is the renovator refresher interval; and the sale of the home is not the measure.

    Source: 40 CFR §745.86 (recordkeeping)

  7. 7. Cabinet Installation

    How does the federal finish-carpentry guide specification say countertops should be provided?

    • a.In the longest practical lengths
    • b.In stock lengths, if joints are caulked
    • c.In short sections for easier handling
    • d.In lengths joined at each cabinet

    Answer: a

    Explanation: The guide specification calls for counter sections in the longest lengths practicable with a minimum number of joints, joined with concealed pull-up bolts and water-resistant glue where joints are needed. Short sections and joints at every cabinet add joints; caulk does not replace the joint method.

    Source: UFGS 06 20 00 (countertops)

  8. 8. Millwork Installation

    What does the federal finish-carpentry guide specification say about face nails in finish work?

    • a.Leave them flush and paint over them
    • b.Avoid them on painted trim
    • c.Clinch them on the back of the trim
    • d.Set them for putty stopping

    Answer: d

    Explanation: The guide specification calls for finish nails, blind nailing where practicable, and face nails set for putty stopping. Leaving nails flush skips the setting and puttying the specification calls for; clinching bends over nails driven through stock and is not a finish method; and the specification allows set face nails rather than avoiding them.

    Source: UFGS 06 20 00 (finish work)

  9. 9. Millwork Installation

    Under the federal glazing standard, what makes a safety-glazing label "permanent"?

    • a.It is a paper sticker on the glass
    • b.It is printed on the window's packing carton
    • c.It is listed on the installer's invoice
    • d.It stays legible; removal destroys it

    Answer: d

    Explanation: The federal standard defines a permanent label as one that remains legible and visible after installation and would be destroyed in attempts to remove it, such as sandblasted or acid-etched marks. A carton, a removable paper sticker, or an invoice entry does not meet that definition.

    Source: 16 CFR §1201.2 (permanent label)

  10. 10. Worker and Job Site Safety

    What is the action level for respirable crystalline silica under Section 5204?

    • a.10 micrograms per cubic meter
    • b.100 micrograms per cubic meter
    • c.25 micrograms per cubic meter
    • d.50 micrograms per cubic meter

    Answer: c

    Explanation: Section 5204 sets the action level at 25 micrograms per cubic meter and the permissible exposure limit at 50, both as 8-hour TWAs. Ten micrograms is the lead PEL, and 100 micrograms is not a silica figure in the rule.

    Source: Cal. Code Regs. tit. 8 §5204 (respirable crystalline silica)

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