Pyjama Party 4 – Sewing The Crotch Seam

Crotch Seam

When you have two seams joining at an intersection like the above, you want things to meet up. Today, you’ll learn how!

We have two trouser pieces and now we want to sew them together. Turn one leg right side out and place it inside the other leg, right sides of fabric together. I tried to photograph this stage for you, but it looked like nothing more than a mess of fabric!

Pin the raw crotch seams together. Please make sure that your notches line up! Did you know that two notches always mean the back seam? These two notches indicate the seam running up the back of our torso when we wear our PJs.

Back Notches

The pattern also asks us to mark in a curved line extending from the seam up to the top at the front. Now, before we start sewing the length of that seam, we’re going to pay some special attention to where our seams interconnect.


Line up the two side seam lines from each trouser leg as accurately as possible, and place two pins closely to the side seams. Then sew a short line across this seam intersection. Viola! You have a perfect intersecting seams that will not move or shift as you go back to the machine and sew your complete crotch seam!

Seam Intersection Collage


Now, you need to make a little snip into the seam allowance at the base of your false fly extension:


And finish your seams. I finished mine fairly wonkily on the overlocker. That’ll do, pig, that’ll do!


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7 Responses to Pyjama Party 4 – Sewing The Crotch Seam

  1. maddie says:

    Good tip to line up the inseam first, sew a short stitch, and then sew the crotch seam.

  2. carlalissa says:

    Great pictures, thank you. Nice pins where did you get them? Do you recommend using the walking foot all along for this project?

    • I’m using a walking foot because my jersey was dragging slightly. It depends on your fabric, I suspect. If you’re working with a good, well-behaved cotton probably not.

  3. The pins! Where did you get those pins and how can I get my mitts on some?

  4. The pins are Merchant & Mills silk pins!

    • Tutorial is fab as we expect from you- but the pins are indeed amazing! 😉
      Just googled Merchant and Mills- the silk ones are entomology pins?! I’ going to buy some, but may have to take out of the lovely old-fashioned box lest I have flashbacks of pinning mosquitoes while studying malaria at uni… Erk.
      The Babe reference made me smile… 🙂

  5. Pingback: Pyjama Party with Karen @ Did You Make That? | enchantedbybooks

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