This page is for anyone who has followed Course 2 (Stitches, Seams and Construction) and now needs to combine what it taught into one working document. At work, nobody checks a garment's construction by remembering four separate lessons in their head. A quality controller, a merchandiser or a buyer opens one checklist, works down it point by point, and reaches a pass or fail decision on the whole garment before it goes to inspection. Without that single combined checklist, a person can know all three properties separately (lessons 2.1 to 2.3) and how to check them (lesson 2.4) and still sign off on a garment with a construction point nobody thought to list at all.
This lesson does not teach a new fact about construction. It assembles lesson 2.1 (stitch class), lesson 2.2 (seam type), lesson 2.3 (seam allowance) and lesson 2.4 (checking all three properties per point) into one complete construction checklist, then applies that checklist to Order A's own T-shirt construction for Cedar & Co., a domestic Make to Stock buyer. This lesson mainly teaches a decision: given a real submitted checklist, is it complete enough to use at inspection.
You need: lessons 2.1 to 2.4 of this course. If you have not read them, the key terms below and the method's steps restate what each one covers.
By the end of this lesson you can:
Not covered here: how a pattern and a marker are made before these construction points are even cut (Course 3, lesson 1), and how a size set changes a garment's measurements (Course 4).
| Term | Meaning |
|---|---|
| Stitch class | A standard international classification (ISO 4915) naming how a stitch is formed, such as class 301 lockstitch or class 401 chainstitch. |
| Seam type | A standard classification (ISO 4916) naming how fabric pieces are joined at a seam, such as a plain seam or a flat-felled seam. |
| Seam allowance | The fabric width between a cut edge and a stitch line, commonly 1 cm (3/8 inch) for a plain seam, though it varies by construction. |
| Construction spec | The document naming which stitch class, seam type and seam allowance each construction point of a garment must use. |
| Construction point | One specific place on a garment, such as a neckline, a seam, a hem or a closure, that the construction spec gives its own requirements for. |
| Construction checklist | A document listing every construction point of a garment, with its required stitch class, seam type and seam allowance, and space to record what was found and a Pass or Fail result. |
A complete construction checklist lists every construction point of a garment — necklines, seams, hems, closures — and, for each one, names the required stitch class, seam type and seam allowance from the construction spec, with space to record what was actually found and a Pass or Fail result. Building this checklist means working through the garment systematically, from top to bottom, matching the order Course 1's anatomy worksheet already set out, so no construction point is missed.
| What can differ | The shapes you meet | Why it matters |
|---|---|---|
| Complete checklist | Every construction point listed, with all three properties named and a Pass or Fail result recorded for each. | Ready for use at inspection; nothing was left for the inspector to guess. |
| Incomplete checklist, missing a construction point | A checklist covering the seams but skipping the hem entirely, as if it did not exist. | Misses a real inspection risk; a fault at the hem has no line to be recorded against. |
| Incomplete checklist, missing a property | A checklist naming the stitch class for each point but not the seam allowance. | Incomplete per lesson 2.3's requirement; a point can pass on stitch class while its seam allowance is never checked at all. |
| Order A's and Order B's case | Order A's T-shirt (neckline, side seams, hem) and Order B's jeans (fly-front placket, outseams, hem) are the two worked examples showing a complete checklist built systematically. | Both garments' own fixed construction points anchor what "every construction point" means in practice. |
Cedar & Co., planning a domestic Make to Stock batch of T-shirts built on Order A's own construction, asks its quality team to build a complete construction checklist before the batch starts. Cedar & Co. sells through its own shops from its own forecast, not against a single confirmed buyer order, so the checklist has to be right before the batch is cut; there is no separate buyer inspection further down the chain to catch a gap later. The team is expected to work through Order A's T-shirt systematically — neckline, side seams, hem — naming the required stitch class, seam type and seam allowance for each point from the construction spec, with a column left open to record what is actually found once sewing begins.
| Construction point | Stitch class (spec) | Seam type (spec) | Seam allowance (spec) |
|---|---|---|---|
| Neckline | Class 401 chainstitch | Plain seam | 1 cm |
| Side seams | Class 401 chainstitch | Plain seam | 1 cm |
| Hem | Class 406/407 coverstitch | Plain seam | 1 cm |
This closing lesson needs no new figure. Its worked output is the checklist itself: three rows, one per construction point, each carrying the three properties already fixed by lessons 2.1 to 2.3 and reusable for any T-shirt built on Order A's own construction.
A checklist counts as complete only once every construction point the garment actually has is listed with all three properties. Order B's jeans add a fourth kind of point this T-shirt does not have — the fly-front placket — which its own checklist would list in the same systematic way, alongside its outseams and hem.
The methodA common mistake is building the checklist only for the construction points that commonly fail inspection, skipping ones that "always pass." A construction point that has never failed before can still fail on a new batch if the fabric, the thread or the operator changes. A complete checklist covers every construction point the garment has, not just the historically risky ones — leaving one off because it "always passes" is exactly how a real fault, like a missing hem entry, goes unrecorded.
This lesson brings together everything Course 2 taught, in one checklist anyone can build before a batch starts. Go through the garment from top to bottom: the neckline, then the seams, then the hem, then any closures. For each one, write down the stitch type, the seam type, and the seam width the spec asks for, and leave room to write what was actually found and whether it passed. Do this for every point the garment has, not only the ones that usually cause trouble in the past. A point that has never failed before can still fail this time if something about the fabric, the thread or the person sewing it changes. A checklist that skips even one point, like the hem, is not ready to be used at inspection.
Cedar & Co.'s quality team submits a construction checklist for a new T-shirt batch to be built on Order A's own construction, ahead of a domestic Make to Stock production run.
You are on Cedar & Co.'s quality team. Is this checklist ready for use at inspection? Decide before you open the decision.
Not yet. The checklist lists the neckline and the side seams, each with all three properties and a Pass result. But the hem, a construction point with its own required stitch class, seam type and seam allowance (a T-shirt hem commonly uses a coverstitch, per lesson 2.1), is missing entirely.
A checklist missing a whole construction point is a different, more serious gap than a checklist missing one property on a point it does list — nobody has asked any question about the hem at all, so an inspector using this checklist would have no line to record a hem fault against, even if one exists.
The team should add the hem entry, naming its required stitch class, seam type and seam allowance from the construction spec, before this checklist is used at inspection.
This is framed qualitatively, tying together the whole course, since the actual cost depends on the specific fault and batch. An incomplete construction checklist risks a construction fault at an unchecked point, such as the hem, shipping undetected — not because the fault could not have been found, but because the checklist itself never asked the question at that point. Once a batch this large has moved past inspection, finding and fixing a construction fault at the hem costs far more than adding one missing line to the checklist would have cost before the batch started. This is the real, if not separately quantified, cost this closing lesson's complete, systematic checklist method is designed to prevent.
This course's workbook is the checklist itself. Its Construction Check sheet has one row per construction point, with columns for the point's name, the spec's requirement (stitch class, seam type and allowance together), what was found, and the result. The example rows already filled in show Order A's T-shirt and Order B's jeans points, including a hem row where the found stitch class does not match the spec. Download the workbook, copy its row layout, and add one row for every point the garment actually has, working from the neckline down.
| Checklist row | Order A's T-shirt (filled in) | Your order |
|---|---|---|
| Neckline | Class 401 chainstitch, plain seam, 1 cm; Pass | |
| Side seams | Class 401 chainstitch, plain seam, 1 cm; Pass | |
| Hem | Class 406/407 coverstitch, plain seam, 1 cm; Pass |
1. What three properties does a complete construction checklist record for each construction point?
2. In what order should a construction checklist be built, and why?
3. A jacket's construction checklist lists the collar, the front closure and the cuffs, each with all three properties, but has never included the inside lining seam because it has never failed inspection before. Is this checklist complete?
| EN | AR | FR | TR | Meaning |
|---|---|---|---|---|
| Stitch class | فئة الغرزة | Classe de point | Dikiş sınıfı | A standard international classification (ISO 4915) naming how a stitch is formed, such as class 301 lockstitch or class 401 chainstitch. |
| Seam type | نوع الدرزة | Type de couture | Dikiş tipi | A standard classification (ISO 4916) naming how fabric pieces are joined at a seam, such as a plain seam or a flat-felled seam. |
| Seam allowance | سماحة الدرزة | Surplus de couture | Dikiş payı | The fabric width between a cut edge and a stitch line, commonly 1 cm (3/8 inch) for a plain seam, though it varies by construction. |
| Construction spec | مواصفة التصنيع | Fiche de construction | Konstrüksiyon spesifikasyonu | The document naming which stitch class, seam type and seam allowance each construction point of a garment must use. |
| Construction point | نقطة التصنيع | Point de construction | Konstrüksiyon noktası | One specific place on a garment, such as a neckline, a seam, a hem or a closure, that the construction spec gives its own requirements for. |
| Construction checklist | قائمة فحص التصنيع | Liste de contrôle de construction | Konstrüksiyon kontrol listesi | A document listing every construction point of a garment, with its required stitch class, seam type and seam allowance, and space to record what was found and a Pass or Fail result. |
You now have one completed construction checklist that lists every construction point of a garment with its three required properties. The next course moves one step earlier in the process, to how a pattern and a marker are made before any of these seams are even cut. Back to the course map