flat-felled seam; courtesy of Flickr

Flat-felled seams are use a lot in skirts, dress pants and blouses. They allow the sewer to hid the edges of the fabric when they do not want them to show. This seam is one of the hardest, which is why it is last.

These are the steps to creating a flat-felled seam:

  1. Make a straight line 4" from one end of the sample and cut the piece in half along the line.
  2. Mark a stitching line 5/8" from each cut edge
  3. Pin the two pieces together, matching the stitching lines. The right sides of the fabric should be facing one another.
  4. Stitch the seam on the machine, removing the pins as you go. Be sure to backstitch at each end.
  5. Press the seam to one side and then the other and then open the seam using the pressing board.
  6. Carefully cut away half oft he seam allowance over the stitched seam and cover the trimmed down seam allowance. Don't touch the other side.
  7. Fold over and press half of the seam allowance on the other side toward the stitching.
  8. Pin the fabric flat.
  9. Stitch the seam on the machine, removing the pins as you go and be sure to backstitch at each end.
  10. Press the seam down.
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