Arune Guja

How to Add Snap Placket to a Baby Romper

Baby romper placket sewing can be a bit tricky sometimes! Especially if you are making the baby romper for the first time! But don’t worry, here are the detailed sewing instructions that may make things less complicated. We are also sharing the pictures that we and our pattern testing community made to help you and each other to figure out the steps!

How to sew a snap placket

Here is the step by step guide on how to sew a baby romper packet. You can either make this type of placket with snap buttons or regular buttons. For the placket interfacing you can use knit interfacing or slightly lighter knit fabric.

You will need two placket panels: front placket panel that is curved and is sewn to the front bodice inseam, and long straight back placket panel that is sewn to the back bodice inseam.

When you are finished the front placket should be a part of the front bodice panel - the curved shape mimics area around the inseam of the front bodice. And the back placket should be more of a flap that is attached to the edge of the back bodice panel and goes under the front placket.

Baby romper placket sewing instructions

Step 1: Take the front placket panel (curved one) and front placket interfacing. Place the panel face to face with front bodice panel, and the interfacing panel on top of them. Sew everything together along the outer edge.

Step 2: Fold the placket panel backwards and iron it.

Step 3: Topstitch the inseam using coverstitch, chainstitch, or zigzag stitch.

Step 4: Catch and stitch the raw edges of the placket using coverstitch or chainstitch.

Step 5: Take the back placket panel, fold it in half lengthwise right side out and iron it.

Step 6: Insert the interfacing into a folded placket.

Step 7: Pin the placket around the back panel’s leg inseams matching the raw edges. 

Step 8: Sew panels together along the outer edge.

Step 9: If there is an extra amount of fabric at the ends  -  trim it away to match leg hem length.

Step 10: Unfold the placket, press seams with iron, and topstitch next to the inseam (try to catch the seam of the placket itself - it will create a nice,  flat, and finished look).

Step 11: Count your preferred amount of snap buttons and mark the placements on the plackets. Attach the snap buttons. Make sure that the stud on the front placket is facing inwards and the sockets on the back placket are facing outside. This way the placket will overlap correctly (the back placket part has to be under the front placket part). Note: You can choose to add the buttons at the end when the garment is finished.

Step 12: Overlap the plackets on the leg hems and connect them with a couple of safety stitches by hand or with the sewing machine. It will prevent the fabric from slipping away when attaching the cuff.

Step 13: Turn the garment wrong side out and sew the side seams and shoulder seams.

Here are the examples of how front and back plackets look when compared to each other

And here are few examples how the placket looks when the garment is finished.


Dec 28, 2021