Cast off your loom scarf by looping each stitch over the one above it
Casting off a loom-knitted scarf means securing the last row of stitches so they do not unravel. The most common method is the basic loop cast-off: you lift each stitch over the stitch above it, working your way around the loom until one loop remains. That final loop becomes your anchor. The whole process takes five to ten minutes and requires only the loom, your yarn, and a tapestry needle.
The cast-off happens after you have finished knitting to your desired length. Before you start, cut your yarn, leaving a tail about six inches longer than the width of your scarf. This tail gives you enough yarn to work with and to weave in later.
Key Takeaways
- The basic loop cast-off lifts each stitch over the stitch directly above it, moving around the loom in one direction until one loop remains.
- You need a tapestry needle and a yarn tail at least six inches long to complete the cast-off securely.
- The final loop is pulled tight and woven through the edge stitches to anchor the scarf and prevent unraveling.
- Different loom shapes (round, rectangular, long) follow the same cast-off principle but require you to move in a consistent direction around the pegs.
Step-by-step basic loop cast-off
Start at any peg on your loom. Using a tapestry needle, thread your yarn tail through the first stitch (the loop sitting on the peg). Pull the yarn through, leaving the loop on the peg for now.
Move to the next peg in the direction you are working around the loom. Thread the tapestry needle through that stitch as well. Now lift the first stitch up and over the second stitch, pulling it off the peg. The second stitch stays on the peg. You now have two loops on the needle and one stitch remaining on the second peg.
Continue this pattern: thread the needle through the next stitch, lift the previous stitch over it, and remove the previous stitch from the peg. Work your way around the entire loom. When you reach the last peg, only one loop will remain on the loom and one on your needle.
Pull the yarn tail through that final loop on the needle and tighten it firmly. This secures the cast-off edge. Weave the tail through the edge stitches of your scarf using the tapestry needle, then trim any excess yarn.
Avoiding common cast-off mistakes
The most frequent error is working too quickly and dropping stitches before they are secured. Move slowly and make sure each stitch is fully lifted over the one below it before you remove it from the peg. If a stitch does slip off, you can pick it back up with your tapestry needle and continue.
Another mistake is cutting the yarn tail too short. A tail shorter than six inches makes it difficult to thread through stitches and leaves you without enough yarn to anchor the final loop. If you cut too short, you can tie a new piece of yarn to the short tail using a weaver's knot, though this adds a step.
Some knitters pull the yarn too tight while casting off, which can pucker the edge of the scarf. Keep tension even and moderate—tight enough that stitches do not slip, but loose enough that the edge lies flat.
Cast-off methods for different loom shapes
Round looms and circular looms follow the same basic loop cast-off, but you work around the circle in one direction (usually clockwise). Mark your starting peg with a stitch marker or scrap yarn so you know when you have completed the circle.
Rectangular looms require you to decide whether to cast off around all four sides or just the two long sides. Most scarf patterns cast off only the live stitches on the loom at the end of knitting, which means you work along one edge. Follow the same loop-over method, moving in a straight line rather than around a circle.
Long looms used for scarves typically have stitches on two parallel rails. Cast off by working along one rail, lifting each stitch over the next, then repeat on the second rail. Some knitters prefer to cast off both rails at once by treating them as one continuous loop, moving back and forth between the rails.
Securing the cast-off edge after removal
Once you remove the scarf from the loom, the cast-off edge can still come loose if the final loop is not anchored properly. After pulling the yarn tail through the last loop, weave it back through at least three to four edge stitches on the scarf itself. This locks the cast-off in place.
Use your tapestry needle to thread the tail under and through the bumps or loops along the edge of the scarf. Work in one direction for two or three stitches, then reverse direction and weave back through the same stitches. This crisscross pattern holds the tail firmly in place.
Trim the tail close to the scarf, leaving about a quarter inch. If you leave it too long, it can catch on things or look unfinished. If you trim too close, the weaving may come undone over time.
Finishing touches after cast-off
After casting off and weaving in the tail, lay your scarf flat and gently stretch it to even out the edges. The cast-off edge should lie as flat as the rest of the scarf. If it looks bunched or wavy, you may have pulled too tightly during cast-off. Blocking (wetting and pinning the scarf to shape) can help even out minor irregularities.
Check both ends of your scarf. The cast-on edge (where you started) and the cast-off edge (where you finished) should look similar in tension and appearance. If one edge is noticeably tighter than the other, you now know to adjust your tension on the next scarf.
Some knitters add a light steam press to the cast-off edge using a cool iron and a pressing cloth. This can help set the stitches and make the edge look more polished, though it is not required.
Troubleshooting cast-off problems
If your cast-off edge is too tight and puckers the scarf, you likely pulled the yarn too hard while lifting stitches over. On your next scarf, use a lighter hand and let the stitches move more freely. You can also try using a slightly larger tapestry needle, which creates a bit more slack in the yarn.
If the cast-off edge looks loose or stitches are slipping, you may not have pulled the yarn tight enough after lifting each stitch over. The loop should be snug on the peg before you move to the next one. If this happens on a finished scarf, you can carefully re-tighten the edge by pulling gently on the yarn tail and working it back through the edge stitches.
If you accidentally drop a stitch during cast-off, stop when ready and pick it back up with your tapestry needle before continuing. Dropped stitches can unravel quickly, so catching them right away saves time and frustration.
Frequently Asked Questions
Can I cast off a loom scarf without a tapestry needle?
A tapestry needle makes cast-off much easier because it holds the yarn steady and lets you thread through stitches cleanly. If you do not have one, you can use a crochet hook to lift stitches over, though this is slower. A blunt needle from a sewing kit works in a pinch, though it may split the yarn.
What if I run out of yarn before finishing the cast-off?
Tie a new piece of yarn to the end of your working yarn using a weaver's knot, which creates a small, flat join. Continue casting off with the new yarn. When you finish, weave both yarn tails into the edge of the scarf to hide the knot.
Do I have to cast off every stitch, or can I leave some on the loom?
You must cast off every stitch on the loom, or the remaining stitches will unravel when you remove the scarf. The cast-off secures all the loops so they cannot slip off the yarn.
How tight should the cast-off edge be?
The cast-off edge should be snug enough that stitches do not slip, but not so tight that it puckers or curls. It should feel similar in tension to the rest of your knitted scarf. If you are unsure, err on the side of slightly looser—you can always tighten it by pulling the yarn tail.
Can I cast off a loom scarf while it is still on the loom, or do I have to remove it first?
You cast off while the scarf is still on the loom. The cast-off process is what allows you to safely remove it. Once all stitches are cast off and the final loop is anchored, the scarf will not unravel when you take it off the pegs.