🚧 Under construction — VoTechWorks is being built. A free tech program — complimentary, as our commitment to get America working.
voTechWorksGrade 13 · a vocational technology learning center, by urbanicity
newSchoolWorks.com › VoTechWorks › Building & Construction › Carpentry › Cabinetry: Layout, Construction, and Installation › Lesson 12
BLD-CARP03-06 · Lesson 12 · 10 clock hours · lab

Quality Control, Punch List, and As-Built Documentation

Objective. Students complete a written punch list identifying every defect in a finished cabinet installation, prioritize corrections by severity, correct all critical items, and submit an as-built sketch with final dimensions.

Why Quality Control Matters in Cabinet Work

A cabinet installation is only finished when every door closes cleanly, every drawer slides true, every gap is tight, and the whole assembly is level and plumb. Reaching that standard requires a formal quality-control process rather than a quick glance. In the trade, this process is called the punch list. Contractors and inspectors use punch lists on every job — residential, commercial, or institutional — to make sure nothing is overlooked before the client signs off. Learning to run a thorough punch list now builds the habit that protects your reputation on every job you do in your career.

What a Punch List Is

A punch list is a written record of every item in a completed installation that does not yet meet the specified standard. Each entry names the defect, gives its location, and rates its severity. When the defect is corrected, the person who fixed it dates and initials the entry to close it. The final signed punch list becomes part of the project record.

Severity ratings keep the work organized:

In this lesson you will focus on identifying and closing all critical items within the lab period.

The Systematic Walk-Through

Random checking misses defects. A professional walk-through follows a fixed sequence so that every unit is inspected in the same order every time. A good sequence for a cabinet run is:

1. Level and plumb — hold a 4-foot level on the face frame of each unit and on the top of the run. A cabinet that is out of level by more than a small tolerance will cause doors to swing open or closed on their own.

2. Door gaps — check the gap at the top, bottom, hinge side, and latch side of every door using a combination square or feeler gauges. Consistent reveals (the gap between the door and the face frame) show proper alignment. Uneven reveals indicate hinge adjustment is needed.

3. Drawer alignment — open and close each drawer fully. The drawer face should sit flush and parallel to neighboring doors and drawer faces. A racking drawer or a face that tilts indicates an adjustment at the mounting screws.

4. Hardware function — operate every hinge, pull, knob, soft-close mechanism, and full-extension slide. Each should move through its full range without binding.

5. Surface finish — inspect every exposed surface in raking light (light held nearly parallel to the surface). Look for scratches, dents, finish holidays, and glue squeeze-out.

6. Scribe fits — check where cabinets meet walls or the ceiling. A scribe strip should lie tight against the wall along its full length with no visible gap. Run your feeler gauge behind the scribe to confirm.

7. Toe kick — verify the toe-kick panels are fastened, level, and tight at the floor.

Record every discrepancy on the punch-list form using the location code printed on the form (for example, "U-3 upper cabinet, left door, top gap").

Correcting Critical Items

For each critical defect, plan the correction before picking up a tool:

After correcting each item, re-inspect it and mark it closed on the punch list with your initials and the date.

As-Built Documentation

An as-built sketch records what was actually built, including any field changes made during installation. It is not a design drawing — it is a measured record. On graph paper, draw the cabinet run freehand in plan view (looking down) and in elevation view (looking straight at the face). Dimension every cabinet width, the overall run length, the height of uppers and bases, and the depth from the finished wall surface. Measure carefully with your tape measure and round to the nearest 1/8 inch. Your sketch must be within 1/4 inch of the instructor's check measurements at three verified points.

File the completed punch list and as-built sketch in your shop log portfolio. The portfolio is your professional record of every project you complete in this program. Future employers and NCCER Registry documentation may reference it.

Safety in the Lab

Quality-control work involves moving around a finished installation with tools and a clipboard. Keep these points in mind:

Completing Your Portfolio Entry

A complete shop log entry for this lesson includes: the signed and dated punch list with all critical items closed, the as-built sketch with dimensions labeled, and a brief written note (two to three sentences) describing the most significant defect you found and how you corrected it. This entry demonstrates your quality-control skill to any employer who reviews your portfolio.

Key terms9

Punch listA written record of every defect or incomplete item in a finished installation, rated by severity, used to track corrections through to close-out.
Critical defectA defect involving structural failure, loss of function, or a visible gap or misalignment that the client or inspector would reject; must be corrected before the job is considered complete.
RevealThe uniform gap between the edge of a door or drawer face and the face frame of the cabinet; consistent reveals indicate correct alignment.
Scribe stripA narrow piece of material attached to the end of a cabinet run that is cut or planed to follow the contour of an irregular wall, eliminating visible gaps.
As-built sketchA freehand dimensioned drawing made after installation that records actual field dimensions and locations of the completed work, including any changes from the original plan.
Feeler gaugeA set of thin metal blades of precisely known thickness used to measure small gaps, such as door reveals or the space between a scribe strip and a wall.
Raking lightA light source held nearly parallel to a surface to highlight surface defects such as scratches, dents, or uneven finish that are invisible under direct overhead light.
Shop log portfolioA learner's ongoing professional record of completed projects, sketches, and documentation used to demonstrate skill development to instructors and future employers.
Close outThe act of marking a punch-list item as fully corrected, typically by dating and initialing the entry after re-inspection confirms the defect is resolved.

Worked examples4

1. You measure the reveal on the left side of a cabinet door and get 3/16 inch. The reveal on the right side of the same door is 5/16 inch. What is the difference, and how many full quarter-turns of the lateral adjustment screw should you try first if one quarter-turn moves the door approximately 1/32 inch?
  1. Find the difference in reveals: 5/16 in − 3/16 in = 2/16 in = 1/8 in.
  2. Convert 1/8 inch to thirty-seconds: 1/8 = 4/32 in.
  3. Each quarter-turn moves the door 1/32 in, so divide: 4/32 ÷ 1/32 = 4 quarter-turns.
  4. Turn the lateral adjustment screw 4 quarter-turns in the direction that moves the door toward the wide-reveal side, then re-measure both reveals.
Answer: The reveals differ by 1/8 inch; start with 4 quarter-turns of the lateral adjustment screw, then re-check.
2. You are drawing an as-built elevation of a base cabinet run. You measure the overall width of three base cabinets: 18 inches, 24 inches, and 30 inches. The two face-frame stiles between adjacent cabinets each overlap 3/4 inch on each side at the joint, so you lose 3/4 inch of visible space at each joint. What is the total face width you would dimension on your sketch from the outside edge of the left cabinet to the outside edge of the right cabinet?
  1. Add the three cabinet widths: 18 + 24 + 30 = 72 inches.
  2. Identify the number of joints: three cabinets share two joints.
  3. At each joint the face frames overlap, but the outside-to-outside dimension is the sum of the individual cabinet widths with no deduction — the overlap is internal. The outside edge of each cabinet box is the full stated width.
  4. Therefore the total outside-to-outside dimension is simply 18 + 24 + 30 = 72 inches.
Answer: 72 inches total outside-to-outside width. No deduction is made for internal stile overlaps when measuring outside box edge to outside box edge.
3. Your as-built sketch shows the uppers are 12 inches deep. The instructor checks with a tape measure and gets 12 1/4 inches. Is your sketch within the accepted tolerance of 1/4 inch, and what is the exact error?
  1. Find the difference: 12 1/4 in − 12 in = 1/4 in.
  2. The tolerance is within 1/4 inch, meaning the error must be 1/4 inch or less.
  3. 1/4 in = 1/4 in, which equals the tolerance limit exactly.
Answer: The error is exactly 1/4 inch, which meets the tolerance limit. The sketch passes the check at this point.
4. A scribe strip has a gap behind it that varies from 0 at the top to 3/8 inch at the bottom over a 30-inch height. You set a compass to scribe the cut line. To what measurement do you open the compass, and where along the strip will you remove the most material?
  1. The compass must be set to the widest gap so the pencil line follows the wall contour while the pivot rides the strip: set the compass to 3/8 inch.
  2. After scribing, the line will be closest to the strip edge at the top (gap is 0 there) and farthest from the edge at the bottom (gap is 3/8 inch there).
  3. Therefore the most material is removed at the bottom of the strip.
Answer: Set the compass to 3/8 inch; the most material is removed at the bottom of the scribe strip.
In class: Systematic punch-list walk: students move around the completed installation with a clipboard and a standard punch-list form, checking door gaps, drawer alignment, hardware function, surface finish, scribe fits, and level/plumb at each unit, noting every discrepancy with a description and location code. · Defect correction: students correct all items marked critical (structural, alignment, or visible gaps) before the end of the lesson period, re-checking each item and marking it closed on the punch list with the date. · As-built sketch: students measure the completed installation and produce a freehand dimensioned sketch showing cabinet locations, widths, heights, and depth from the finished wall, accurate within 1/4 inch, and file it in their shop log portfolio.
Materials: Punch-list form (instructor-prepared), tape measure, 4-foot level, combination square, feeler gauges, pencil, graph paper, shop log portfolio, all hand tools used in prior lessons
Check: All critical punch-list items closed and initialed by instructor; as-built sketch dimensions verified by instructor measurement at three points and within 1/4 inch; complete shop log portfolio submitted for pass

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

Trade practices and professionalism
1. On a punch list, which severity rating requires correction before the installation can be considered complete?
Cabinetry layout, construction, and installation
2. A cabinetmaker uses raking light during a quality-control inspection. What does this technique reveal that normal overhead lighting often hides?
Cabinetry layout, construction, and installation
3. During the punch-list walk you find a door whose reveal is 1/8 inch on the hinge side and 5/16 inch on the latch side. Which adjustment corrects this problem on a concealed cup hinge?
Trade practices and professionalism
4. What is the primary purpose of an as-built sketch filed in a shop log portfolio?
Cabinetry layout, construction, and installation
5. When checking a scribe strip for gaps, a worker finds a gap that is 0 at the top and 1/2 inch at the bottom. To what measurement should the compass be set before scribing the cut line?
OSHA safety and health
6. Which personal protective equipment is most important when using a utility knife to trim a scribe strip during defect correction?
Trade practices and professionalism
7. A punch-list entry reads: 'U-2, left door, latch-side gap 3/8 in, critical.' After repair, what information must be recorded on the punch list to properly close this item?
Career and credential awareness
8. The NCCER Registry is significant to a carpentry graduate because it:
Record this lesson on my transcript. Sign in with your key and enrollment email to record lessons (enroll free if you have no key). This page stays open to read and practise.
← Previous lessonProgram plan