Three needle bind off

Before the three needle bind off

A three-needle bind-off joins two rows of live stitches while closing them. You knit one stitch from each row together, then bind off the new loops. The join has a seam ridge. It is useful for sweater shoulders and other edges where the pattern calls for a firm join.

This is not Kitchener stitch. Grafting continues the knitted fabric; a three-needle bind-off makes a seam. At a mitten tip, that ridge may feel different against your fingers. Follow the mitten pattern's finishing choice rather than treating the two methods as identical.

You need two needles holding equal numbers of live stitches, a third needle to work with, yarn, scissors and a tapestry needle. Start with a working needle the same size as the needles used for the fabric. The holding needles can be that size or smaller. See Lion Brand's shoulder-joining advice for this size distinction.

1. Line up the two edges

For a join with the ridge on the inside, put the right sides together, facing each other. The wrong sides face outward. Hold both loaded needles in your left hand, parallel, with their tips pointing right. Check that the first stitch on the front needle matches the first stitch on the back needle.

The working yarn must reach the first pair of stitches. You can use an attached ball strand if it is in the right place, or join fresh yarn and leave an end to weave in. Keep the strand behind the holding needles, ready to knit. Do not use the short cast-on tail by mistake.

Count both rows before working. If the counts differ, check the pattern or find the missing stitch first. Do not quietly skip a stitch to make the rows match. For a tube, arrange half the live stitches on each holding needle and check which surfaces face each other before closing the opening.

2. Knit the first pair together

Take the empty third needle in your right hand. Insert its tip into the first stitch on the front needle as if to knit, then into the first stitch on the back needle in the same way. The third needle now passes through one stitch from each row.

Wrap the working yarn as for a knit stitch. Draw one new loop through both old stitches. Let those two old stitches slip off their holding needles only after the new loop is safely on the third needle. You now have one loop on the working needle. Nothing has been bound off yet.

This is a paired stitch across two needles. It is not an ordinary knit-two-together using neighboring stitches on one needle. Cocoknits demonstrates the front-stitch/back-stitch pairing, including how seam placement changes with the work's orientation.

3. Make the second loop, then bind off

Work the next front and back stitches together in the same way. You now have two new loops on the third needle.

With a holding-needle tip, lift the older loop, the one farther from the working tip, over the newer loop and off. Keep the newer loop on the working needle. This is the first bind-off, and one loop remains.

Repeat this small cycle: knit the next front/back pair together, then pass the older working-needle loop over the new one. After each bind-off, check that just one loop remains on the third needle. Keep the chain relaxed enough to span the edge without drawing it in.

4. Secure the last loop

When both holding needles are empty, one loop remains on the third needle. Cut the working yarn, leaving an end long enough to weave securely into your fabric. Draw that cut end through the last loop, remove the needle and snug the loop closed.

Turn the piece right side out. Check the seam from both sides, then weave in the ends with a tapestry needle. Do not trim an end flush with the last loop before weaving it in. Hands Occupied's underarm tutorial shows the final-loop finish and the difference between the inside and outside of the join.

Try a four-pair three needle bind off

Make two small plain swatches with four stitches each. Leave those stitches live on separate needles. The swatches are for learning the join, not for checking a garment's gauge.

1. Put right sides together: four stitches at the front, four at the back.
2. Knit one pair together: three remain on each holding needle; one loop is on the third.
3. Knit a second pair: two remain on each holding needle; two loops are on the third. Pass the older loop over: one remains.
4. Work the third pair and pass over. One stitch remains on each holding needle, with one loop on the third.
5. Work the final pair and pass over. Both holding needles are empty. Secure the one remaining loop with the cut yarn end.

Eight starting stitches become four joined pairs, not an eight-stitch edge. The three pass-overs plus the secured final loop close all four pairs. This count is a useful check before trying a wider shoulder seam.

Fix the common problems

The join pulls the fabric inward. Stop and compare the chain length with the fabric edge. Ease the tension as you work. Try the join on a sample before changing needle size for a garment; a larger working needle changes the loop size, not the number of paired stitches.

The ridge is on the outside. Check the setup. Right sides together puts the ridge inside when you turn the work out. Wrong sides together exposes it as a design detail. For a hidden join, undo and reset before finishing the seam.

A stitch is left on only one holding needle. Stop before cutting the yarn. Check for a missed back stitch, a dropped stitch or unequal starting counts. Do not work the lone stitch as if it were a pair without checking the pattern.

Two loops remain on the working needle. You may have missed a pass-over. If the holding needles are empty, pass the older loop over the newer one before securing the final loop.

Check the join before you trim

Set the work down and inspect both sides in good light. The seam should run along the intended edge, with every starting stitch accounted for. On the practice sample, count four joined pairs. Look for an open loop hanging below the seam, a gap where a back stitch was missed or a loose end that has not been secured.

Spread the sample gently across its width. The chain should span the edge, rather than cinching the fabric into a gathered line. Do this check before weaving and trimming, while any mistake is easier to reach. A chain that is merely loose is different from a dropped stitch; trace the yarn path instead of pulling at an unknown loop.

For a garment, compare the joined edge with the pattern's intended shape. A shoulder seam and a mitten tip do different jobs. Do not use this practice exercise to change a designer's shaping or stitch counts. Keep the project's own measurements, yarn choice and finishing instructions.

FAQ: questions about the join

Can I use a circular needle to hold the stitches?

Yes. The live stitches need to sit on two holding tips that you can bring alongside each other. Keep the spare cable and tips clear of the working yarn. The third needle makes the new loops. For the first sample, choose a setup that lets both loaded tips rest close together without pulling the stitches.

What if the pattern says to bind off only part of each row?

Work only the number of pairs the pattern names, keeping the remaining stitches live. A partial join may leave stitches for a neck or another section. Stop at the specified count rather than working until the holding needles are empty. Check the next pattern instruction before cutting the yarn; the project may still need it attached.

Which stitch is the older loop?

It is the loop you made first, farther from the point of the right-hand working needle. The newest loop sits closer to that point. Lift the older one over the newest one, then off the point. The newer loop stays put. Do not slide both loops off together or pull the newest one over the older one.

Is pairing stitches without pass-overs the same as a three-needle bind-off?

No. Pairing stitches without the pass-overs leaves a new row of live stitches on the third needle. A three-needle bind-off closes that row as it forms. After the first pair, each new paired loop is followed by a pass-over. If you have several loops on the working needle, check whether you have missed those bind-offs.

Verdict: use the three needle bind off for a seamed join

Use the three needle bind off when a pattern calls for joining two sets of live stitches with a seam. It does not directly join two edges that are already bound off. Match the counts, work one stitch from each row per pair and secure the last loop before weaving in.

For tool choices, see our beginner knitting needle guide. If you are working a small tube first, our two-circular-needle tutorial explains the needle changes. The knitting glossary defines bind-off and other pattern terms.