
There are several methods you can choose from to join granny squares. I will show you the method I like best, the slip stitch method. It is a very nice and flat stitch. With this method, you can choose to use a contrasting color for the seam as well.
Video tutorial ‘How to join granny squares’
The video consists of 3 parts:
- Part 1: how to join the first 2 granny squares
- Part 2: how to join the 3rd and 4th granny square
- Part 3: The intersection of the 4 granny squares
Photo tutorial ‘How to join granny squares’

1. You will see that many granny squares have 2 or more chain stitches in the corners. This granny square has 2 chain stitches. I will start working in the second stitch, because the other chain belongs to the other side of the granny square.

2. Begin with the granny square on the right. Insert your hook into the back loop of the chain.

3. Now insert your hook (from the front to the back) through the back loop of the chain from the second granny square.

4. Now you will grab your yarn and pull it through both loops. The granny squares are now attached to each other.

5. You will continue working slip stitches into the back loops. Insert your hook through the back loop of the next stitch of both granny squares. Yarn over and pull the yarn through all 3 loops on the hook. Make sure that your working yarn always stays on the back of your work.

Do you need more information? A more detailed explanation can be found in the video above.