3-Needle Bind-Off
The fastest and most stable way to join two knitted parts. Perfect for shoulders on sweaters and tops.
What is 3-needle bind-off?
This is a technique that lets you "knit together" two edges while binding them off. Instead of binding off each part separately and then sewing them together with a needle, you do both in one operation with an extra knitting needle.
Advantages of this method
- Stability: Creates a firm seam that doesn't sag or stretch.
- Time-saving: You avoid seaming with needle and thread.
- Clean result: Gives a very straight and neat seam on the inside (or outside).
- Secure: Since the stitches are knitted together, there is no chance of the seam "loosening".
How to do it (Step-by-step)
Right sides facing
Hold the two needles parallel with right sides of the fabric facing each other on the inside.
Knit 2 together from both needles
With a 3rd needle, insert through the first stitch on front needle AND first stitch on back needle. Knit them together as one.
Knit next pair & pass over
Knit the next pair together so you have 2 stitches on the 3rd needle. Pass the first stitch over the second to bind off.
Three-needle bind-off knits stitches together from two parallel needles and binds them off in a single fluid motion.
- Position the parts: Place the two parts to be joined (e.g., front and back) with right sides together. The stitches should be on their own needles, held parallel in the left hand.
- The third needle: Use a third needle in the right hand. Feel free to use a needle half a size larger to ensure the bind-off edge isn't too tight.
- Knit together the first stitch: Insert the right needle through the first stitch on both needles at the same time. Knit them together as if they were one stitch.
- Knit together the next stitch: Repeat for the next two stitches. You now have two stitches on the right needle.
- Bind off: Lift the first stitch on the right needle over the second stitch, just like a standard bind-off.
- Repeat: Continue knitting together two and two stitches and binding off until the needles are empty.
Tips for shoulders
If you want a decorative seam that is visible, you can do the technique with wrong sides together. Then the neat bind-off edge will lie on the right side of the garment, which is very modern today.
See how it's done
Sometimes it's easier to see the technique in action. Here is a good video showing the 3-needle bind-off when you're joining shoulders:
Video from Purl Soho
Frequently Asked Questions
Do I need a third knitting needle, or can I use a circular needle?
A circular needle works great - you just use the tip as the third needle. The advantage of a circular needle is that stitches are less likely to fall off along the way.
Should the seam be visible or invisible?
That's a matter of taste. Knit with right sides together for an invisible seam on the inside, or wrong sides together for a decorative seam visible on the outside.
Can I use three-needle bind-off if the two needles have different stitch counts?
No, the technique requires both pieces to have exactly the same number of stitches. If the counts differ, you'll need to adjust with increases or decreases first.
Why does my bound-off edge come out too tight?
Try using a third needle that's a half to full size larger than the needles you knitted the pieces with.
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