Last week, for Project Run and Play, I made a polo shirt for Tater. I couldn’t find a good tutorial on how to do a polo shirt placket, so I figured it out on my own, and this is how I did it.
1. Determine the size you want your finished placket to be. I wanted 1 inch wide by 3 inches long. Remember that this placket won’t stretch if you’re using woven fabric, and account for that with your measuring so you won’t be stuck with a beautiful shirt that won’t go over your kid’s head (speaking from experience, ahem). Now cut a fabric strip that is twice the width of your placket plus 1/2 inch, and twice the length of your placket plus 2 inches or so (you can cut it down to length later).
2. Find and mark the center front of your shirt. This is a regular old t-shirt front, cut out the same way I would if I was making a regular t-shirt.
3. Mark a line parallel to your center front 3/8 inch over (if your placket is wider than 1 inch, you need to mark further over). This line should be the same length that you want your finished placket. In the picture below, this is the white line.
4. Using your ruler, draw a diagonal line on each side of your placket mark. It should be 1/4 inch away from your placket line at the top. These lines are black in the picture below.
I know it looks funny to off-set your placket from the center, but you’re doing this so that the buttonholes will be centered later.
5. On the back side of the shirt, iron on some lightweight interfacing. Notice this is off center as well.
6. Iron down 1/4 towards the wrong side on the long sides of your placket fabric.
7. The scary part – cut the white line for your placket.
8. Open your placket by pulling the shoulder edges apart, so the placket edge is now a straight horizontal line. Pin your placket fabric to the outside of the shirt, right sides together, lining up the fold line from your 1/4 edge with the black lines that you drew on your placket. It will look like this – hardly any seam allowance in the middle of the placket, and 1/4 inch on the edges.
9. Sew the placket to the shirt. Stop with the needle down at the point and lift the foot to shift the extra fabric over, so that you don’t end up with a pucker in the middle. Bring the rest of the placket up.
10. Placed the ironed down folded edge just over the stitching line, and pin.
11. On the OUTSIDE of the shirt, sew along the edge of the placket, making sure to catch the folded edge on the bottom. Note that in the picture below I rotated the shirt, so now the placket is vertical.
12. This is what the shirt looks like now if you lay it right side up.
13. Fold the right edge up and it looks like this:
14. And the picture below shows how the woven fabric will peek out. You can trim off the extra placket now.
15. Sew a rectangle across the bottom of the placket to secure it. Topstitch the folded edge of the knit.
16. On the inside, pull up the interfacing around the placket edges and trim it off.
This is what the finished inside looks like. Now sew the buttonholes in the top side of the placket, and then add the collar stand and collar as normal.
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