Methods for joining crochet squares

I’m in process of crocheting a blanket, this is the gradient blanket I’ve designed for Sirdar, the pattern number is 10119. I’ve originally designed it in Hayfields Bonus DK, but I decided to use for my version Rowan Felted Tweed DK.

My Felted Tweed version

When the lockdown started, I thought this will be the perfect opportunity to completely organise my home including my huge yarn stash. Well, so far I only did the stash and I was very strict! I went from 6 containers and few additional bags of yarn and project to just 4 containers!! This is really an achievement for me. I donated all that I was getting rid of to the local church who will share it with the elderly ladies, they will use the yarn to knit for charity. I’m sure they will find it useful especially in lockdown.

While sorting out my yarn stash I came across lots of Felted Tweed, not surprisingly really as I love the yarn. That’s how the idea of actually crocheting a blanket for my home came about, I rarely make blankets for our home, they are usually a design for a yarn company. Of course, as much of the tweed as I had I didn’t have enough colours so had to order some more, but hopefully I will use the full balls so won’t be actually adding to my stash. Any small amounts left over I can use to crochet projects.

Anyway, onto joining techniques. All the squares in this blanket are joined using the Join-As-You-Go method which is a fab way joining squares which end in the granny square way. This got me thinking that I could do a blog about my three most favourite ways of joining crochet squares, so here it is. Below you will find descriptions, picture tutorials and video for join-as-you-go, flat slip stitch and slip stitch joint.


Please note – I start my granny squares at a corner with ch 5 which counts as a 1 tr and ch-2 sp.

This tutorial shows you how to join squares starting from the point when you have to join to the corner (have 3 squares already joined). The method is worked the same way when you start joining at the start, where you will attach only one side.

To start – You must have one square fully made. Then, start the next square and when you come to the final round, crochet 3 sides as normal and you will start joining to the first square on the last side.

Start with one square fully made

Follow the rest of the tutorial and how to finish your round.

1. Work half of next corner (3 tr), insert your hook in corner space of first square (one above), work a slip stitch in that space.

2. Then make 3 tr into the same corner space of the square you are working on (that corner space is now completed).

3. 1 slip stitch into the next space (of the first square) between 2 x 3 tr’s from the first square.

4. Work 3 tr of next space of square you are working on.

Now just proceed. You are making a ‘normal’ granny square, just adding a slip stitch where you join your squares. Super easy. Don’t forget to keep your yarn on the right side of your hook!

When you were joining your second and third squares to corner spaces you were only working slip stitch into it. When you have three squares already joined and you need to attach a fourth one you will work the corner a bit differently, I like working it this way as it gives you a lovely joint.

5. Once you arrive at the second corner (where all four squares meet).

6. From the wrong side of work. Follow the blue lines shown on pic 5, insert hook into corner chain space of the square above and corner chain space of the square to the left, make a slip stitch.

7. Still working on wrong side of work, now follow the green lines in pic 5, insert your hook in corner  chain space of middle square (one on top to the left) and work a slip stitch and 1 chain.

8. Now work 3 tr in corner space of the square you are working on now to finish it off.

Then just finish your square as usual.

9. I start my square with ch 5 and 3 tr in same chain space. To finish the joint, I work 2 tr in the beginning chain space, then join it to the 3rd of beginning 5 ch.

10. Then slip stitch to the chain space of square you are working on and corner chain space of square you are joining to.

Flat slip stitch

I have used this method to join squares in the Bolderwood blanket. It produces gorgeous flat joint that is very eye catching. I’ve used the same colour to join the squares as for edging and it just ties in everything beautifully. The joint has no bulky seam just a clearly defined vertical and horizontal lines of stitches on the right side of work.

Place the squares side by side with RS facing up. Join yarn and squares with sl st in corner spaces. You will work only into the back loops of stitches.

Position your yarn so it’s in front of your hook, you will be moving your hook above the working yarn.

11: starting with the square to your right, insert hook from front to back into the back loop of the stitch, pull the loop through the one on hook.

12: Insert hook into back loop of next st on the left, followed by back loop of next st to the right, moving the hook above the working yarn.

13: Yarn around hook and pull through all three loops on hook. 

14: You might find it useful to hold the squares with wrong sides facing each other.

15: Continue repeating steps 11 to 13 until all the squares are joined.

16: When working over corners, join a corner of square you are working on with sl st to corner on the opposite side, so that the stitches cross over.

17: This will give you a nice finish.

Slip Stitch joint

This is a fab and super easy joint. I’ve used it in my Cushion CAL and Lisbon Tiles blanket.

Please note – in the video I start by joining two squares at the same time to corners. Both way are fine to do, they really don’t make any difference.

18: Join yarn to any corner chain space of your first square.

19: Insert hook into any corner chain space of next square.

20: Make a slip stitch to join two squares.

21:  With wrong sides facing each other, hold the squares together and with yarn at the back, insert the hook under full stitches (both legs of the V) of both squares.

22: Make a slip stitch.

23: Continue repeating steps 21 and 22 until the whole row of squares is joined. When you come to corner ch-sp treat them as a stitch but insert the hook into the spaces.

Below is a video with all three techniques. Hopefully you will find it useful.

Here’s a breakdown of what technique is at what point in the video:

  1. Join-As-You-Go – beginning to 9.58 min
  2. Flat slip stitch joint – 10 min to 14.05 min
  3. Slip stitch joint – 14.07 min to end


Anna xx

One thought on “Methods for joining crochet squares

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