Joining Granny squares with Double Crochet is a very common and easy way to join any type of crochet or knit square. It is most pleasing to join with one main colour to tie in all the squares but you can use any colours you like! Use a crochet hook one or two sizes up from the size you used on your squares as you want the joins to be loose, rather than tight so as not to pucker the squares.
1) You will be working with/picking up both sides of the braid along the edge of your square. As seen in this picture. Notice how the braid looks like a line of v's.
(FYI, there are ways to join squares picking up only one side of the braid, however that is not what we are looking at in this tutorial.)
2) Align both of your squares side by side with wrong sides together.
3) With your joining yarn, or Main Colour (MC), create a slip knot and place on the hook.
4) Insert your hook from front to back in the first corner space.
5) Yarn over.
6) Bring yarn over through to the front of both squares.
7) Yarn over and pull through both stitches.
8)You have now joined your two squares. Make sure to keep the tail end yarn out of the way and use the working yarn only!
9)Insert hook into the squares, in the following stitches. You will now be picking the two v's in the braid.
10) Yarn over.
11) Pull yarn over through to the front of your squares.
12) Yarn over.
13) Pull yarn over through both stitches on your hook.
14) Continue your double crochet edge in this way. When you come to the next ch 3 space, simply insert the needle through the hole and continue steps 10 through 13.
15) Work your way to the end of the squares finishing in the corner space.
16) Align your next two squares ensuring they are in the right position. Do not cut your yarn.
17) Pick up the new squares, wrong sides facing. Insert the hook into the corner space to join all squares together. You will be using the same piece of yarn.
18) Yarn over.
19) Pull yarn over through to the front of your squares.
20) Yarn over.
21) Pull yarn over through both stitches on your hook. Try to keep this first join as tight as possible.
Trouble shooting. If you find that for some reason one square is longer than the other, you may have jumbled up somewhere do to using different yarn weights or hey! even just added an extra stitch in somewhere! There is a sneaky fix you can do that flies under the radar quite nicely!
Look at your next cluster and determine how many stitches you have before the next chain space. In this case, I have two.
To match the different lenghts, simply jump stitch number one of the longer square. Insert the hook into stitch number two BUT pick up the same stitch on the shorter square that you would have if the squares were the same length. You won't notice the fix up! If you need to do more than one jump, try to space them out evenly across the square rather than building them up in one space.
Continue to the next corner.
Example of four granny squares joined with double crochet join. Also referred to as the ridge join.
Not sure which order to join your squares in? Have a look at this chart.