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How to Sew a Flat Fell Seam

July 15, 2022 by Margaret Leave a Comment

Look at your jeans or a men’s dress shirt, and you’ll likely spot flat fell seams. On the outside of the garment, there’s a pair of stitch lines, while the inside is all tidy without any raw seam edges. If you’ve wondered how it’s done, it’s not magic — sewing a flat fell seam is a technique every garment sewer can (and should!) learn.

Flat Fell Seam

Level: Easy

What You Need

FabricThreadPinsIron

Instructions

1. Pin

Pin the fabric of the seam together, wrong sides facing.

2. Stitch

Sew the seam at the project’s allotted seam allowance. (We used ⅝”.)

3. Press

Press the seam open on both sides of the fabric.

4. Trim

Trim one side of the seam allowance down to ¼”. Do not trim the other side.

5. Fold

Press the untrimmed seam allowance over the seam and on top of the trimmed side. Fold the pressed side under, tucking the raw edge into the fold.

Press the fold, ensuring the raw edge is fully tucked under and the left flap is the same width along the seam.

6. Finish

Line up your fabric in your machine so the stitching is close to the fold. Stitch along the edge of the fold, trapping all the raw edges inside.

That’s it! You’ve just finished a neat and tidy flat fell seam.

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  • A Quick and Easy Guide To Sewing a French Seam
    A Quick and Easy Guide To Sewing a French Seam
« How To Read A Sewing Pattern
A Quick and Easy Guide To Sewing a French Seam »

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