Cast off your stitches to lock them in place
The most common way to finish knitting is to cast off (also called bind off), which locks your final row of stitches so they cannot unravel. You do this while the stitches are still on your needle, before you remove the yarn. The basic method takes about a minute per row and works for almost every project.
To cast off, knit two stitches normally. Then use your left needle to lift the first stitch you made over the second stitch and off the needle entirely. Knit one more stitch, lift the old stitch over it, and repeat until one stitch remains. Cut your yarn, pull the tail through that final loop, and pull tight. Your edge is now find.
Different projects call for different cast-off methods. A stretchy cast-off works better for ribbed edges or projects that need to expand, like the cuff of a sock. A picot cast-off creates a decorative edge with small loops. A three-needle cast-off joins two pieces of knitting together while finishing them both at once. The basic method works for scarves, blankets, and most garments.
Key Takeaways
- Cast off by knitting two stitches, lifting the first over the second, and repeating until one stitch remains, then pull the yarn tail through it.
- Cut your yarn to a tail of at least six inches so you have enough length to weave in later.
- Weave in loose ends by threading them through a tapestry needle and running them through nearby stitches on the wrong side of the fabric.
- Block your finished piece by wetting it, shaping it to the right dimensions, and letting it dry flat to even out the stitches and improve the final appearance.
- A stretchy cast-off works better than the basic method for ribbed edges or projects that need to fit snugly around a body part.
Weave in the loose yarn ends
After you cast off, you will have a yarn tail hanging from your work. You also have a tail from when you first cast on. These loose ends need to be woven into the fabric so they do not show and do not come loose over time.
Thread your yarn tail through a tapestry needle (a blunt needle with a large eye). On the wrong side of your knitting, run the needle through the loops of nearby stitches for about two inches, going in and out of the fabric. Change direction and weave back through a different set of stitches for another inch or two. This anchors the tail so it cannot pull free. Trim any remaining yarn close to the fabric.
If you have a seam to close (for example, joining the sides of a sweater), weave the tail along that seam as you close it. This hides the end and strengthens the seam at the same time. For projects with multiple color changes, you may have several tails to weave in — do them all before you consider the piece finished.
Block your knitting to even out the stitches
Blocking is an optional but worthwhile step that shapes your finished piece and makes the stitches look more even. It works especially well for lacy patterns, garments that need to fit a specific size, and anything that looks a bit lumpy or uneven.
To block, wet your finished knitting in cool water with a bit of wool wash or mild soap. Gently squeeze out the water — do not wring or twist. Lay the piece flat on a clean towel or blocking board and shape it to the dimensions you want. If you are blocking a sweater, measure the width and length and pin it to match a schematic. If you are blocking a shawl, pin out the edges to open up the lace. Let it dry completely, which usually takes 24 hours or more depending on thickness and humidity.
Some yarns, especially synthetics, do not need blocking. Superwash wool and cotton usually benefit from it. Check your yarn label or pattern notes to see whether blocking is recommended for your project.
Seam pieces together if your pattern requires it
Many knitting patterns are made in separate pieces — front, back, sleeves, and so on — that you seam together after finishing. The most common seaming method is the mattress stitch, which creates an invisible seam that looks like a continuation of the knit fabric.
To use mattress stitch, place two pieces with their right sides facing you. Thread a tapestry needle with a length of yarn (you can use the cast-on or cast-off tail if it is long enough). Insert the needle under the horizontal bar between the first and second stitch on one piece, then under the corresponding bar on the other piece. Move up one row and repeat, going back and forth between the two pieces. Pull the yarn snug every few stitches so the seam closes. The seam will be nearly invisible from the front.
If your pattern calls for a different seam (backstitch, whip stitch, or grafting), follow the specific instructions in your pattern. Different seams work better for different edges and yarn weights.
Trim and find any remaining loose threads
After weaving in ends and seaming, look over your entire piece for any loose threads or yarn bits. Trim them close to the fabric with scissors. If a thread is sticking out from the middle of your work, do not just cut it — thread it through a needle and weave it in first, or it will pull loose.
Check seams and edges for any stitches that look loose or about to unravel. If you find one, you can find it by running a needle through the loop and tying it off on the wrong side. This is especially important at the corners of seams, where stress is highest.
Wash and dry your finished project
A final wash removes any dust, oils, or debris from your hands that accumulated during knitting. Use cool water and wool wash or mild soap. Gently squeeze the water through the fabric — do not rub or wring. Rinse in cool water until the soap is gone.
Squeeze out excess water and lay the piece flat on a clean towel to dry. You can also roll it in a towel to remove more water before laying it flat. Drying flat prevents stretching and keeps the shape even. Depending on thickness and humidity, drying takes 24 to 48 hours.
If you already blocked your piece, you may not need a separate wash. Check your yarn label for care instructions — some yarns should not be washed at all.
Frequently Asked Questions
What if I drop a stitch after I have already cast off?
You can still fix it. Use a crochet hook to pick up the dropped stitch and pull it back up through the rows above it until it reaches the top. Then knit it back onto your needle and cast it off properly. If the dropped stitch is more than a few rows down, you may need to unravel back to that point and reknit.
Can I cast off while the stitches are still on the needle without cutting the yarn?
No — you must cut the yarn to create a tail long enough to pull through the final stitch. If you do not cut it, the last stitch will unravel as soon as you remove the needle. Leave at least six inches of tail so you have enough to weave in later.
Do I have to block my knitting?
Blocking is optional but recommended for most projects. It evens out stitches, opens up lace patterns, and helps garments fit the intended size. Garter stitch and stockinette stitch projects benefit most. Check your pattern or yarn label for specific guidance.
What is the difference between casting off and binding off?
They are the same thing. Different knitters and different regions use the terms interchangeably. Both refer to the process of locking your final row of stitches so they cannot unravel.
How do I know if my seams are tight enough?
Seams should be snug but not so tight that they pucker the fabric. If you can see gaps between the two pieces, your seam is too loose — pull the yarn tighter as you work. If the seam is pulling the fabric out of shape, you are pulling too hard.