How to Sew Shirt Collars: Stand Collar, Convertible Collar, and Two-Piece Collar with Stand

The collar is the most visible part of a shirt and one of the harder details to sew well. A clean collar separates a homemade shirt from one that looks tailored. The good news: collar construction follows specific patterns that are repeatable across shirt designs. Once you can sew one type cleanly, the others are variations.

This guide covers the three most common shirt collar types: stand collar (band only, no folded portion), convertible collar (single-piece folded collar without a stand), and two-piece collar with stand (the classic dress shirt collar). Each has specific construction techniques worth understanding.

The three collar types compared

Collar	Pieces	Difficulty	Used for
Stand	2 (band only)	Easy	Mandarin shirts, henleys, casual blouses
Convertible	2 (folded collar)	Medium	Casual button-front shirts, blouses
Two-piece with stand	4 (stand + collar)	Harder	Dress shirts, tailored shirts

What you need (for any collar)

• The shirt’s bodice with shoulder seams sewn but not the side seams.
• Collar pattern pieces, cut and marked.
• Fusible interfacing for the upper layers (or sometimes both layers, depending on pattern).
• Sewing machine, regular foot, thread.
• Iron and press cloth.

Interfacing is critical for collars. It gives them the body and shape that distinguishes a tailored collar from a floppy one. Use medium-weight interfacing for casual shirts, slightly heavier for crisp dress-shirt collars.

1. Stand collar (band only)

The simplest collar. A single band wraps the neckline.

Construction

1. Interface the outer band layer (or both layers if the pattern specifies).
2. Sew the upper edge: place the two band pieces right sides together, sew along the upper curved edge. Trim and grade seam allowances. Turn right-side out and press.
3. Attach to the neckline: pin the band to the shirt neckline (right sides together), with the two layers of band sandwiching the neckline raw edge.
4. Sew through all layers: stitch along the neckline seam. Backstitch at the start and end (button band edges).
5. Press the seam allowance into the band.

The band collar is now attached. The top edge of the band is the finished collar edge.

2. Convertible collar (single-piece folded)

A casual shirt collar without a separate stand. The collar piece folds and is sewn directly to the neckline.

Construction

1. Interface the upper collar layer (the visible side).
2. Sew the outer edges: place the two collar pieces right sides together. Sew around the three outer edges (the side and top edges that will be visible). Don’t sew the bottom (neckline) edge.
3. Trim and grade seam allowances. Trim corners diagonally.
4. Turn right-side out and press carefully. Use a point turner to push out corners.
5. Topstitch (optional) around the three sewn edges, 5 mm from the edge, for a crisp finish.
6. Attach to the neckline:
   • Place the collar against the shirt neckline, right sides together (the upper collar should be facing the right side of the shirt).
   • Pin around the neckline, matching notches.
   • Place the front facing on top (the facing covers the inside of the front button area).
   • Sew through all layers along the neckline.
7. Press the seam allowance into the collar.
8. Hand-stitch the inner collar to the inside of the shirt to finish (or topstitch through all layers if the pattern uses topstitch).

3. Two-piece collar with stand (the classic)

The most refined and most-used dress shirt collar. The collar attaches to a separate stand (which sits against the neck), and the stand attaches to the shirt’s neckline.

Construction (the order matters)

1. Interface the upper collar layer and one stand layer.

2. Construct the collar (just the visible folded part):

   • Place the two collar pieces right sides together.
   • Sew around the three outer edges (side and top, as in a convertible collar).
   • Trim, grade, turn, and press.
   • Topstitch (optional).

3. Attach collar to one stand layer (the inside stand):

   • Place the inside stand piece flat (interfaced side down, if interfaced).
   • Place the collar on top, with the unsewn edge of the collar aligned with the upper edge of the stand.
   • Pin in place.
   • Sew along the upper edge of the stand, capturing the collar’s bottom raw edge.

4. Sandwich with the outer stand:

   • Place the outer stand piece (right side up).
   • Place the collar+inside stand assembly on top, with the collar pointing down between the two stand layers.
   • The stand’s curved bottom edge (which attaches to the neckline) should now be exposed.
   • Sew along the upper edge and around the curved ends of the stand.
   • Trim seam allowances and turn right-side out.
   • Press.

5. Attach to the neckline:

   • Open the stand’s bottom edge. The stand is now flat with the collar between layers.
   • Place the open stand against the shirt neckline (right sides together).
   • Sew along the neckline, attaching one stand layer.
   • Press the seam upward into the stand.
   • Fold the other stand layer’s seam allowance under and topstitch over the previous seam, hiding all raw edges.

The two-piece collar is now attached. The stand sits against the neck; the collar folds outward.

Common collar mistakes

The collar points are blunt or rolled

Trim corner seam allowances diagonally before turning. Use a point turner (or chopstick) gently to push points out.

The collar twists or the points don’t match

Pin carefully before sewing. Use notches and centre points consistently. Double-check symmetry before sewing the final seam.

The collar is asymmetric

Cut both pieces with the pattern facing the same direction. After cutting, verify both pieces are mirror images.

The neckline has gathers or puckers

The collar/stand is too small for the neckline. Re-measure both pieces. Stay-stitch the neckline before attaching the collar.

The collar stand is bulky

Trim seam allowances and grade them (one shorter than the other) to reduce bulk. Use a thinner interfacing.

The collar feels flimsy

Add interfacing, or use a heavier-weight interfacing. The collar should hold its shape.

What good interfacing does

For collars specifically:

Interfacing weight	Best for
Lightweight fusible	Casual shirts, blouses
Medium fusible	Standard shirts, work shirts
Heavy fusible	Crisp dress shirts
Sew-in (woven)	Tailored shirts, traditional construction

Test on a scrap of your fabric before committing — fusible interfacing can darken or stiffen fabric in ways you might not want.

For more on interfacing types, see our interfacing types guide.

What collars unlock

Once you can sew collars cleanly:

• Tailored shirts with proper button-front plackets — see our button-front shirt guide.
• Blouses with various collar styles.
• Dresses with collared bodices.
• Tailored coats (the same techniques scale up).

Closing thought

Collars are precision work. Each step is straightforward, but small inaccuracies compound into visibly poor collars. Take time on each step — accurate cutting, careful stitching, thorough pressing — and the result rewards the effort. A clean two-piece collar is the detail that announces “this person knows what they’re doing.”

For the broader intermediate skill set, see our complete intermediate techniques roadmap. For the next-level tailored collar (with hand pad-stitching), see our pad stitching guide.