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Unfortunately, there comes a time when you run out of yarn while you are knitting your project. Whenever that happens, you will need to know how to join yarns together in a way that isn’t recognizable.
In fact, there are several methods you can use for joining yarns. Which one you choose will depend on your project, as well as the yarn type you are using.
Some of the most common methods of joining yarns are:
Joining yarns at the end (this tutorial)
Joining yarns in the middle
Splicing yarn
The Russian Join
In this tutorial, we will focus on how you can join yarns at the end of a row in your project.
Joining a Yarn Ball at the Edge
This method can be used when you run out of yarn and need to start a new ball in the same color, or you need to change to a new color.
Moreover, it is especially useful when you have a seam edge where the ends can be woven in.
If you have started knitting and realized that you are going to run out of yarn, you can just unravel back to the edge.
Actually, you can estimate if you have enough yarn to finish a row by following these steps:

Lay your piece flat.


Fold the remaining yarn back and forth over the knitted piece.


If you have at least 4 times the width of your project, you will have enough yarn to knit a row of simple stitch patterns. More complex stitch patterns may require more yarn.

How to Join Yarns at the Edge – Step-by-Step

You will need to have a tail of about 6 inches (or approx. 15.5 cm) of the old ball.


To join the new yarn at the side edge, tie it loosely around the old yarn. Make sure to leave a 6-inch tail (about 15.5 cm).


The knot should be tight enough so that none of the ends can work themselves free. However, the knot should be loose enough so that you can untie later.


Make sure to push the knot up to the edge of your knitting before you start knitting with the new yarn.


When finishing the project, untie the knot and if possible, weave the ends into the side seam.


Alternatively, undo the knot and weave one end up the edge for a couple of inches (approx. 5 cm). Then double back over a few stitches to secure the end. Make sure you do not pull it too tightly and distort the edge.


Finally, weave the other end down the edge, using the same method.
