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Fixing Neck Gaping – Princess Seams from the Armhole

This is the second post of a series about neckline fitting corrections. We are looking at front neck gaping issues, which can happen for various reasons, for example, when the bust needs more shaping or the neck widths don’t match.

In this post, the correction discusses neckline gaping issues when the princess seam comes from the armhole. For princess seams, you can apply this correction to both front and back panels. The following post will discuss corrections when it comes from the shoulder.

The first thing you need to check is the neck width difference between your front and back pattern.

1. Pin any excess in the front neck area and measure that amount. This is the amount the neck width needs to reduce in the front.
2. Do the next two steps as we discussed in the previous post. Lay the front panel on the back and consider any zippers or placket at the center front.
3. You want your front neck width to be the same or slightly smaller than the back -including half of your CF zipper width or placket.
4. You could sew a second muslin if your neck widths were not matching. If you still have gaping after your neck widths align, pin that amount and measure it.
5. Mark the pattern in that area and the width you’ve measured.
6. Slash and close it shut.
7. Redraw the neckline to be smooth and continuous at the slashing area.

Don’t forget to include the placket widths and zipper widths when you check the front neck to the back neck!

This information and more can be found in The Fitting Book. Order your book today through the link below.

Learn the 3-Step
Fitting Process:

  • A) Identify the Fitting Issue.
  • B) Pin, Cut, & Tape the Fitting Sample.
  • C) Correct the Sewing Pattern.


  • This Fitting Book Includes:
  • ~ Tops ~
  • ~ Pants ~
  • ~ Skirts/Dresses ~
  • ~ My Secret in Diagonal Draglines ~

It’s Time to Sew Clothes You Love that Fit.