Double Crochet Flat Join for Granny Squares

One of the most popular techniques for joining granny squares is the double crochet flat join. This method creates a seamless and sturdy join, while keeping your work nice and flat. When using a contrasting colour for the join, it creates a pretty arrow effect that can become a decorative feature of your project.

In this tutorial, I will guide you through the step-by-step process of working a double crochet flat join for granny squares.

Note: UK double crochet = US single crochet

Materials Needed:

• Granny squares
• Crochet hook (size suitable for your yarn)
• Yarn (matching or contrasting color)

Step 1: Prepare Your Granny Squares

Before you begin joining your granny squares, ensure that you have completed all the individual squares, that you’ve woven in all ends and blocked your squares. Lay them out in the desired order to plan how your project will be constructed (see image 1 below).

Decide whether you want to start working along the columns or rows, it doesn’t really matter which you start with. Line up your first two granny squares, side by side with the corners are together. You’ll be working the double crochets into the stitches of one square and then pulling the working loop through the corresponding stitch on the other square.

Step 2: Start with a Slip Knot

To begin the double crochet flat join, choose your working yarn and create a slip knot. Place the slip knot on your hook (2).

Step 3: Double Crochet into the Next Stitch

Then working into the corner stitch of the first granny square, make a double crochet . Insert your hook into the stitch (3a), yarn over, pull up a loop (two loops on your hook), yarn over and pull through both loops on your hook to complete a double crochet (3b).

Step 4: Pull the Loop Through the Second Granny Square

Next, pull up the working loop on your hook to make it slightly longer. Remove your hook from the loop, insert your hook into the corresponding corner stitch of the second granny square going from front to back (4a). Insert your hook back into the working loop and pull the loop through the stitch (4b). Pull the working yarn to tighten up the loop a little bit but not too tight or you’ll pucker your work.

Step 5: Continue Along Remaining Stitches

Repeat steps 3 and 4 along the remaining stitches of both granny squares until you reach the opposite corner stitch (5). Make sure to work the same number of double crochets as there are stitches in the row.

Step 6: Joining More Squares

When you come to the next corner, as before, double crochet into the first corner stitch of the first granny square. Then pull the working loop through the corresponding corner stitch of the second granny square.

Line up your next two granny squares and continue across. Work a double crochet into the first corner stitch of the third granny square (6a). Then pull the loop through the corner stitch of the fourth granny square (6b).

Continue double crocheting into the next stitch and pulling through the working loop, just as you did in Steps 3 and 4. Repeat this process to join all remaining squares in the row (6c).

Once you have joined all the squares in the first row, repeat Steps 2 to 7 to join the subsequent rows. Make sure to align the squares properly and maintain an even tension to create a uniform join.

Step 7: Joining Along the Columns

Now that you have all of your rows joined you will want to work along the columns.

Repeat steps 3 to 6 on the first granny squares in your column (7a). When you come to the next corner where the rows are joined, you will work over the top of the row joins.

Work a double crochet into the corner stitch of the first granny square (7b & 7c). Pull up the working loop and remove your hook (7d). Insert your hook, from front to back, into the corner stitch of the second granny square. Then insert your hook back into the working loop and pull it through the stitch.

Work a double crochet into the corner stitch of the next (third) granny square (7e). This will pull your stitch over the top of the row join with your working yarn travelling underneath. Pull up the working loop and remove your hook. Insert your hook into the corner stitch of the fourth granny square, insert your hook into the working loop and pull it through the stitch.

Continue as before working across all the stitches in the granny squares (7f). Repeat with all the remaining columns.

Step 8: Finishing the Join

After joining all the squares, fasten off the yarn

I hope you’ve found this tutorial useful but if you have any questions please drop them into the comments and I’ll do my best to answer them for you.

Happy crocheting!