How to Make a Flat-Fell Seam

comments (1) December 30th, 2008     

Pin It

Shannon_Dennis Shannon Dennis, contributor
Love it! 8 users recommend
Topstitch 1/8 inch and 1/2 inch away from the seam.
Sew your seam, then trim to 1/2 inch and press to one side.
Topstitch 1/8 inch and 1/2 inch away from the seam.

Topstitch 1/8 inch and 1/2 inch away from the seam.

Photo: Shannon Dennis

Flat-fell seams are mostly found along jean seams. This is a helpful seam option when using heavy fabrics because it is a very secure seam that allows the fabric to lie flat.

To make a flat-fell seam, sew your seam right sides together as usual. Trim the seam allowance to 1/2 inch.


Sew your seam and trim to 1/2 inch, then press to one side.

Press the seam to one side. On the right side of your project, topstitch 1/8 inch away from the seam using jeans thread or topstitching thread. Make sure to use a larger needle such as a 90/14. Sew another row of topstitching 1/2 inch away from the seam.


Topstitch 1/8 inch and 1/2 inch away from the seam.

To create both rows of stitching at once, use a twin needle with topstitching thread in both needles!

posted in: topstitching, jean seam, sewing jeans, seam for heavy fabric, flat fell seam

Comments (1)

Sweet_Dee writes: Needed this! Thanks!
Posted: 2:04 am on April 1st
You must be logged in to post comments. Click here to login.