How to add a side dart

Part of the beauty of sewing for yourself is the ability to make every outfit fit perfectly to your body. But of course, not all patterns are created equal, and sometimes it can be quite tricky finding the perfect fit for all of our different curves. Justine of the Sewing Rabbit Team is here today showing you how to add a side dart into any shirt pattern, to help make your new top fit perfectly to your shape. You will be amazed at what sewing one tiny little dart can do for proper fit.

How to add a Side Dart


Hello Me Sew Crazy readers! Justine here with a fitting tutorial for you today! A common problem many women have when sewing tops for themselves is a gaping armhole. Most sewing patterns are drafted for a size B bra cup size so If you are bigger then that, then most likely you have encountered this problem. But how do you fix it, especially if you are sewing from a pattern that doesn’t have any darts? You have to create your own dart. And today I’ll show you how !

But first, I’d like to talk a little to you about the importance of sewing a muslin mock up. While making a muslin isn’t that necessary for sewing for children with their straight up and down bodies, getting used to making a quick one for yourself will save you many headaches and wasted fabric in the future. Believe me, you don’t want to cut into a piece of forty dollar a yard fabric until you have made a muslin. And many fitting issues require making one, including fixing the armhole gap. Muslins only take a few minutes, and only need to be basted together quickly.
A gaping armhole occurs when your bust pulls the armhole forward. The only way to solve this problem is by adding a dart, which makes your armhole smaller. You COULD just sew a dart into your fashion fabric and be done with it, and make no muslin at all, but armhole darts don’t look very nice and scream HOMEMADE. A better alternative is to transfer the dart to the side seam of the top. And you have to do the work on the muslin, then change the pattern. finishedtopresized Here is my finished top I made of silk with leather sleeves, with the side dart sewn into it. It’s fitted to a DD cup size , yet is nicely fitted with no gaping.

FIXING THE GAP: pinnedmuslinresized Sew a muslin of the bodice of the top. Try it on yourself or a dress from that is padded to fit you. You can have someone help you pin it to you. In the case of this pattern, it’s meant to be a pullover top and didn’t need to be pinned. Pin out the excess fabric in the armhole. Trace the dart with a pencil. Make sure to mark the apex, or bust point, while the muslin is on your body or form. gapintute1 Take the muslin and lay it on the sewing pattern. Use transfer paper to trace the dart and the apex to the pattern. Get used to marking your apex .Most fashion designing hinges on it. gapingtute3 Draw a line through the center of the dart to the apex. Draw another line about 3.5 inches below the armhole on the side seam and connect it to the apex as well. gapingtute5 Cut through both lines almost to the apex, but not cutting through it. Pivot the armhole dart closed. Voila! The side seam line will open up, creating a new dart. This technique is known as the DART PIVOT METHOD. gapingtute6 Patch behind the armhole and side seam dart with scrap paper. Draw a new armhole with a French curve ruler if you have one. A French curve ruler is a great tool for drafting armholes, and every dressmaker should have one. Close the side seam dart and cut on the seam allowance. gapingtute7 You will need to redraw the dart about 1.5 inches from the apex. You do NOT want your dart ending at the apex. Trust me. The bigger you are the farther away from the apex the dart should end , BTW 1 inch is normal for a B cup. I’d go up about 3/8 inch for each size.

How to Add a Side Dart to fix your Shirt Pattern Fit.  #sewing

Thanks so much for stopping by, and until next time…

Happy sewing!