Uploaded February 2023 | Updated September 2026, 2 weeks ago

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Learn how to seam your knitting with mattress stitch three ways.

Vertical mattress stitch is used to join rows to rows, such as for a side seam or a sleeve seam. Horizontal mattress stitch joins cast-on or bound-off stitches, such as for a shoulder seam. And perpendicular mattress stitch joins stitches to rows, such as for sewing a sleeve to an armhole edge.

Learn more and get step-by-step instructions: interweave.com/article/knitting/how-to-work-mattress-stitch-seams-three-ways

00:00 Introduction to Mattress Stitch
00:35 Vertical Mattress Stitch
02:29 Horizontal Mattress Stitch
03:42 Perpendicular Mattress Stitch

Try all three methods and let us know how it went in the comments!