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The flat-felled seam is an incredibly strong and one of the most popular types of seams. Due to its durable properties, this type of seam finds use in heavy garments such as denim, jeans, jackets, etc.
The best part about this type of seam is that creating it isn’t complicated, which means that both newbie and skilled seamstress can do it.
In the quick guide below, we’ll show you how to sew a flat felled seal by hand.
Steps To Sew a Flat Felled Seam:
1. Before you start, you’ll need to identify the right and wrong sides of the garment you’re working on. The right side is simply the side you want to show from outside.
2. Next, pin your fabric in such a way that the wrong sides stay together, along the raw edges that you’ll be seaming.
3. Now sew the raw edges together using the usual seam allowance, which is around 5/8 inches.
4. You’ll then need to trim the seam allowance of one of the fabric layers so that it’s half the length of the other. (trim it down to around 5-8mm).
5. Take the longer seam allowance and fold it over the shorter one…and then hide the edge under the fold.
6. Stitch down the folded seam allowances with a whip stitch (you can use running stitch if you wish)
You’ll only need around 4-8 stitches per inch to successfully secure the seam allowance.
And you’re done!
See, there’s nothing complicated in creating a flat felled seam by hand! The resulting seam is pretty durable and long-lasting. This is the reason why the flat felled seam is great for heavy fabrics, high traffic areas and parts that undergo a lot of stress.
Don’t forget that the seam also leaves behind a smooth, professional looking finish.