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Crochet Flat Slip Stitch Join – Free Crochet Stitch Tutorial

Janne Kleivset
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Today I’m teaching you the crochet flat slip stitch join!

It’s one of the most pretty ways to join multiple granny squares together, like the Classic Granny Square, Clover Leaf Granny Square & Ferris Wheel Granny Square.

It can also be used to join other crochet pieces, like the Crochet Jacket and Crochet Cardigan with Pockets.

This way to slip stitch crochet join granny squares and crochet pieces have quickly become a favorite over here, because it’s both easy & looks great.

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

What is the Slip Stitch Crochet Join?

The slip stitch crochet join is a joining method often used to join granny squares together, it’s an alternative to the join as you go method, single crochet join and whip stitches.

You can also use the crochet flat slip stitch join to assemble other crochet pieces together.

The slip stitch crochet join uses slip stitches that are worked through the two pieces you are assembling to join the pieces together.

Don’t forget to save this tutorial on Pinterest!

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

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Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Materials Needed to Crochet Flat Slip Stitch Join

To crochet the slip stitch crochet join you can use any crochet hook size and yarn. If you’re following a crochet pattern, use the crochet hook and yarn suggested.

Crochet Abbreviations

We try our best to include all crochet abbreviations in the list above for the crochet stitch pattern, but sometimes we may forget one or two.

Learn more about crochet abbreviations & find a complete list on our Crochet Abbreviations & Terms post.

Crochet Flat Slip Stitch Join Photo Tutorial

In the crochet tutorial below the slip stitch seams are shown in a contrasting color of yarn to make it easier to see. This is a great alternative for making the flat slip stitch seam a feature of your crochet piece.

If you would like it to be less noticeable, opt for the same yarn color as the main color of your crochet project.

Use the following steps to crochet the slip stitch crochet join!

1. Make A Slip Knot

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Make a slipknot before you start.

2. Insert Hook Into Corner Stitch of Left Square

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Insert hook in the back loop of the corner stitch on the left square.

3. Insert Hook Into Corner Stitch of Right Sqaure

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Insert crochet hook through the back loop of the corner stitch on the right square. Make sure your yarn is behind your work at all times.

4. Yarn Over and Pull Through

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Pull through both loops, making the first slip stitch (you can’t really see the first slip stitch on this photo, it’s behind the hook).

5. Insert hook in next stitch on left side

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Go through back loop of the next square on left side.

6. Insert hook in next stitch on right side

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Go through back loop of the next square on the right side. Notice working yarn is behind.

7. Yarn over and pull through all loops

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Yarn over and pull through all loops. 

Repeat steps from the previous 3 photos in the next stitches.

8. Repeat for a few stitches

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

How it looks after finishing a few stitches.

9. Finish along 1 side of a square

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

How it looks after you have crocheted along 1 side of the squares.

10. Continue to another pair of granny squares

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Here’s the next 2 squares placed, ready to continue without cutting yarn.

11. How it looks after joining another pair of granny squares

Crochet Flat Slip Stitch Join - Free Crochet Stitch Tutorial

Showing crossing over to the next 2 squares.

Work rows in 1 direction first. Then rows in the opposite direction.

When you finish your flat crochet join, weave in any yarn ends with a needle.

Slip Stitch Crochet Join FAQ

Is there a right side and wrong side of the crochet flat slip stitch join?

Yes, there is a noticeable right and wrong side of the crochet flat slip stitch join. You will crochet the two pieces of crochet fabric together with the right side facing.

Is the crochet flat slip stitch join the same as surface crochet?

No, the crochet flat slip stitch join is used to work 2 pieces of crochet together, like joining crochet squares, while surface crochet uses slip stitches to create stripes, ribbing and crochet motifs on top of a already crocheted fabric.

What is the difference between the crochet flat slip stitch join and joining with a slip stitch when you crochet in the round?

When you are crocheting the flat slip stitch join, the objective is to crochet two pieces together. The slip stitches create a seam that attaches them to each other.
When you are joining with a slip stitch when crocheting in rounds, you will crochet a slip stitch after the last stitch of the round, into the top of the first stitch of the round to join them together.

Is the invisible join an alternative to the flat slip stitch join?

No, the invisible join is used to end crochet rounds, not to join two crochet pieces together.

Free Crochet Patterns Using the Slip Stitch Crochet Join

When assembling crochet pieces, such as in the free patterns mentioned above, a great alternative for crochet seams is to use the Whip Stitch instead of the Flat Slip Stitch Join. It’s all about preference!

Janne Kleivset

Janne Kleivset

Founder, Crochet Pattern Designer & Owner of Joy of Motion Crochet.

Janne has helped millions of crocheters find their next crochet project with more than 250 free crochet patterns and 110 crochet tutorials on her blog.

With more than two decades of crochet experience, and crochet designing since 2011, she's been featured on multiple prominent sites such as Lion Brand Yarn, in crochet magazines and the OML "Make" book.

Learn more about Janne.



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