Quick Answer: To draft and sew a collar, measure your neckline and add one inch for the placket overlap, draft a collar stand with a 1.25-inch back height tapering to 0.75 inches at center front, cut two collar pieces and two stand pieces with interfacing on one of each, sew the collar and stand separately, then attach the assembled unit to your shirt’s neckline.
Key Takeaways
- A two-piece collar is made of two separate pattern pieces: the collar stand (around the neck) and the collar fall (the part that folds over).
- Add one inch to your neckline measurement to account for the front placket overlap.
- A 3/8-inch seam allowance works best on collar edges to reduce bulk when you turn the piece right side out.
- Interfacing one layer of both the collar and the stand gives the finished piece its crisp shape.
- Trimming corners before turning prevents bulky, rounded collar points.
If you’ve ever wondered how to draft and sew a collar that actually sits flat and sharp instead of curling or puckering, you’re in the right place. In my 15 years of teaching home sewers, the collar is the single detail students rewrite the most — get the drafting right and the sewing gets dramatically easier. This guide walks through the exact measurements, drafting steps, and sewing order I use to build a two-piece collar from scratch, using simple language and clear numbers instead of vague guesswork.
Why Mastering Collar-Making Matters
A two-piece collar (the style used on most dress shirts and button-downs) is built from two related pattern pieces: the collar stand, which encircles the neck and buttons closed, and the collar fall, which sits on top of the stand and folds down over it. Collars frame the face and can make or break the overall look of a garment, but they’re also one of the most commonly botched pieces in home sewing because the stand and the fall have to match each other in length almost exactly. Once you understand how the two pieces relate, the rest of the process becomes much more predictable.
Getting Started: What You’ll Need
Before you start, gather these tools:
- Measuring tape
- Paper for pattern drafting
- Pencil and eraser
- Ruler (a clear grid ruler makes drafting straight lines much faster)
- Scissors
- Fabric for your collar (a quarter yard is enough for most adult shirt collars)
- Fusible interfacing
- Sewing machine
- Thread
- Iron and ironing board
Got everything? Let’s start drafting.
Step 1: Taking the Right Measurements
The first step in how to draft and sew a collar is getting the right measurements. There are two ways to do this:
- Measure a shirt you already like: measure the finished collar from one end to the other.
- Measure your neck: wrap the measuring tape around your neck where the collar will sit, then add about two fingers’ width (roughly 3/4 inch) for comfort.
Add one inch to your measurement to account for the front placket overlap — this is the part that buttons closed when the shirt is worn. Skipping this step is the single most common reason a finished collar feels too tight.
How much seam allowance do you need for a collar?
A 3/8-inch seam allowance is the standard for collar edges. Commercial patterns often use 5/8 inch, but that much fabric bulks up an enclosed seam and makes sharp points harder to turn. In my own pattern drafts I use 3/8 inch on the collar and stand edges and trim it down to about 1/4 inch right before turning the piece right side out, which keeps the corners crisp without weakening the seam.
Step 2: Drafting the Collar Band
Now draft the pattern for the collar band (also called the collar stand) — the part that stands up around the neck.
- Take your neck measurement (with the one-inch placket allowance already added) and divide it by two.
- Draw a horizontal line of this length on your paper. This is your center-back-to-center-front line.
- Draw the back collar stand height at 1.25 inches — this is the standard height I use for most adult shirts and a reliable starting point if it’s your first collar.
- Curve this line down to about 0.75 inches at the front edge.
This curve is what helps the finished collar sit flat against the neck instead of standing straight up. I always tell my students to test this curve on a scrap of paper, pin it around their own neck, and adjust before cutting fabric — a five-minute check that saves an entire remake.
Step 3: Crafting the Collar Pattern
Next, draft the pattern for the collar fall — the top part that folds over the stand.
- Measure from the center back of your collar stand pattern to the front edge.
- Use this measurement to draw the basic shape of your collar fall, making it about 3/8 inch shorter than the stand’s top edge so it sits neatly when sewn together.
- Add about 3/4 inch at the back for overlap and shaping.
- Decide on your collar point shape — classic, pointed, or rounded all work with this same base pattern.
This is the step where you can fully customize the look of the finished shirt without changing the underlying construction.
Step 4: Preparing Your Fabric
With both patterns drafted, it’s time to cut your fabric:
- Cut two pieces each of your collar fall and collar stand from your main fabric.
- Cut one piece each from your fusible interfacing — you only need to interface one layer of each piece, not both.
- Fuse the interfacing onto one collar fall piece and one collar stand piece with a hot iron, following the manufacturer’s heat settings.
This interfacing gives the collar its structure and prevents it from flopping once it’s attached to the shirt.
Step 5: Sewing the Collar
This is where drafting turns into sewing. Follow these steps:
- Place the two collar fall pieces right sides together.
- Sew around the outer edges with your 3/8-inch seam allowance, leaving the bottom open.
- Trim the corners close to the stitching — without cutting the stitches themselves — and trim the seam allowance down to about 1/4 inch along the curves to reduce bulk.
- Turn the collar right side out using a point turner, then press it flat and topstitch 1/8 inch from the edge for a clean, professional finish. This is the same trick I use on every collar I sew — that narrow topstitch line is what makes a homemade collar look store-bought.
Step 6: Assembling the Collar Band
Now assemble the collar stand around the finished collar:
- Position the interfaced stand piece and the non-interfaced stand piece with right sides facing each other.
- Sew along the top curved edge using your 3/8-inch seam allowance.
- Turn right side out and press flat.
- Insert the finished collar between the two stand pieces, matching the raw edges and center points exactly.
- Sew along the outer edge of the stand, fully enclosing the collar’s raw edge inside.
Step 7: Attaching the Collar to Your Shirt
The final step in how to draft and sew a collar is attaching it to your shirt:
- Mark the center of your collar stand and the center back of your shirt’s neckline.
- Pin the collar stand to the neckline, matching these center points first, then working outward.
- Sew the stand to the neckline, starting at the center back and stitching out to each side to keep the collar balanced.
- Press the seam toward the stand and topstitch close to the seam line for a polished, finished look.
Common Collar Mistakes to Avoid
After years of grading student collars, the same five mistakes come up again and again:
- Skipping interfacing: a collar without interfacing will flop instead of standing up properly.
- Not trimming corners before turning: leaves bulky, rounded points instead of sharp ones.
- Forgetting the placket allowance: makes the finished collar sit too tight at the neck.
- Mismatched stand and collar lengths: causes the collar to pucker once it’s attached — always make the collar fall about 3/8 inch shorter than the stand’s top edge.
- Stitching too close to the fold when topstitching: creates uneven stitch lines — keep a consistent 1/8 inch from the edge.
FAQs
How do you sew perfect collar points?
Trim the seam allowance close to the stitching at the point, then clip the corner without cutting through the stitches. Use a point turner to flip the collar right side out and gently push the point out from the inside with a pin or chopstick tip. Press the point flat before topstitching for a sharp, professional finish.
How do you draft a collar stand for a shirt?
Start with your half-neck measurement plus one inch for the placket overlap, then draw a line of that length. Draft the back height at 1.25 inches and curve it down to 0.75 inches at center front. Add a 3/8-inch seam allowance to all edges before cutting.
How do you draft different types of collars?
Start from the same basic collar stand pattern and change the collar fall’s shape: extend the points outward for a pointed collar, curve the edges for a rounded collar, or remove the fall entirely for a mandarin collar. A mandarin collar uses only the stand piece, with no folded-over fall.
How do you make a collar step by step?
Draft your collar stand and collar fall patterns, cut two pieces each from fabric plus one piece each from interfacing, then fuse the interfacing. Sew the collar fall pieces right sides together, trim and turn, then press. Assemble the stand around the finished collar, then attach the whole unit to the shirt’s neckline.
How do you sew a two-piece collar?
A two-piece collar is made of the collar fall and the collar stand, sewn as separate units first. Sew the collar fall’s outer edges together, turn, and press, then sew the stand’s top edge before inserting the finished collar between the stand pieces. Sew along the stand’s outer edge to enclose the collar, then attach the assembled piece to the neckline.
What is the standard seam allowance for a collar?
A 3/8-inch seam allowance is standard for collar edges because it reduces bulk in the enclosed seam once the piece is turned right side out. Commercial patterns often use 5/8 inch, but trimming it down to 3/8 inch before sewing makes sharp corners and smooth curves much easier to achieve.
How much fabric do you need to make a collar?
A quarter yard of fabric is enough to cut both the collar and collar stand pieces for most adult shirt collars. If your fabric has a directional print or stripe pattern, buy a half yard so you can match the pattern across the collar and stand.
Can you draft a collar without a commercial pattern?
Yes, a collar can be drafted from scratch using only your neckline measurement, a ruler, and pattern paper. The full method is the half-neck-plus-placket measurement combined with a stand height of 1.25 inches and a collar fall that’s about 3/8 inch shorter than the stand.
What’s the difference between a collar and a collar stand?
The collar stand is the lower piece that wraps the neck and buttons closed, while the collar (or collar fall) is the upper piece that folds down over the stand. Two-piece collars use both pieces sewn separately and then joined together; a mandarin collar uses only the stand.
Wrapping Up: You’ve Made a Collar!
Congratulations — you’ve learned how to draft and sew a two-piece collar from scratch. It might feel like a lot of small steps the first time, but once you’ve drafted one collar, every collar after it gets faster. Don’t be discouraged if your first attempt isn’t perfect — even after 15 years, I still rip out the occasional collar seam and start again.
Now that you’ve mastered the basics, try adjusting the collar point shape or the stand height to create your own signature style. Happy sewing!