Crochet Slip Stitch Seam

There are so many different ways to join crochet motifs together, but one of the most popular—and versatile—is the crochet slip stitch seam. Even this method has several variations though!

In this beginner-friendly tutorial, I’ll show you how to work a slip stitch seam that creates a beautiful, decorative ridge on the right side of your project. With step-by-step photos and a helpful video tutorial, you’ll be able to master this joining technique in no time.

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I use the crochet slip stitch seam in lots and lots of my patterns, but I loved using this specific version in the Poinsettia Stocking!

What is the Crochet Slip Stitch Seam?

A crochet slip stitch seam is a simple joining method that uses slip stitches (abbreviated to ss or sl st) to connect two pieces of crochet—often granny squares, panels, or motifs. Unlike sewing seams, this technique uses your hook and yarn to create a secure, flexible join.

For this tutorial, we’re focusing on the front-facing slip stitch seam, where the seam is worked on the right side of your project. This creates a raised, decorative ridge that adds texture and definition to your motifs. It’s a favourite for joining granny squares because it’s quick, sturdy, and adds a lovely handcrafted finish.

How to Crochet the Slip Stitch Seam

Here’s a quick step-by-step:

1. Insert your hook into both loops of the st on the motif nearest you and both loops of the corresponding st on the motif furthest from you.
2. Yarn over.
3. Pull through both loops and the loop on your hook.
4. Continue across your seam.

You will need

You can try this tutorial with any yarn and a corresponding hook. I used:

Paintbox Simply Aran, 100% Acrylic, (100g/3.5oz, 184m/201yds)

5.0mm Crochet Hook or hook needed for your yarn

Tapestry needle for working in ends

Scissors

Stitch markers (optional)

Pin this Slip Stitch to Join Crochet to Your Crochet Pinterest Board for Later

Slip Stitch Seam Crochet YouTube Video Tutorial

If you prefer crocheting from a video tutorial, watch as I crochet the single crochet:

How to Join with Slip Stitch Crochet? – Photo Tutorial

Start by inserting your hook into both loops of the stitch on the motif nearest you and both loops of the corresponding stitch on the motif furthest from you. When joining granny squares, this is usually going to be the second of two chains in the corner space.

2. Lay your yarn over your hook.

3. Pull the loop through the stitches in both panels.

4. Insert your hook into both loops of the st on the motif nearest you and both loops of the corresponding st on the motif furthest from you.

5. Yarn over.

6. Pull through both loops and the loop on your hook.

6. Continue across your seam, repeating steps 4 to 6.

Tips for Crocheting the Slip Stitch Seam

• Practice keeping a nice even tension.
• Keep your slip stitches nice and loose so as not to create a puckered seam.
• Work methodically to join all of your seams in the same direction and ensure the joins between seams are neat.

How Else Can I Use the Crochet Slip Stitch Seam?

You may have heard of the flat slip stitch seam. This is almost exactly the same as the one shown here, except for which loops are used. In the flat slip stitch seam, we work into the back loops of the stitches in both motifs rather than through both loops. This creates a much flatter (hence the name) seam, which can be useful in some situations.

Equally you could work just into the front loops with this seam for a slightly different effect. Or try working it on the wrong side of your motifs too!

Is There Another Way I Can Seam my Granny Squares Together?

There are so many different ways to join crochet motifs together. Here are a few options:

• Sew them together using the whip stitch, a simple stitch that wraps over and through the motifs.
• Another sewing method is the mattress stitch, which creates an invisible join.
• Use single crochet to join your motifs for a sturdy seam.
• Make a feature of it with a zigzag seam created by chaining between each join.

And that’s it! This crochet slip stitch seam is practical and pretty, plus it’s much more enjoyable than sewing!

Don’t forget to check out my crochet patterns for more crochet inspiration.

More Crochet Stitches

I have lots of crochet stitch tutorials over on my YouTube channel so please do check them out. Here are some you might like:

• Crab stitch
• Double treble crochet stitches
• Even berry crochet stitch
• Stacked double crochet
• Crunch stitch

Find me on Facebook or Instagram @concretegemscrochet or drop me a message if you have any questions.

What Projects can I make with a Slip Stitch Seam?

If you enjoyed learning how to do this easy crochet seam, then you might like to use it in a pattern. Watch this space for the Poinsettia Stocking coming soon.

Or check out some other patterns that use the flat slip stitch seam through the back loops only:

Get ready to fall in love with the Blossom Breeze Cardi, a stunning and breezy crochet summer cardigan pattern with lace motifs. The Blossom Breeze Cardi is a sleeveless, open-fronted coverup cardigan constructed out of stunning crocheted flower motifs. Each motif is meticulously crafted and then seamed together to create a beautiful and airy garment.

Add a handmade touch to your houseplants with this Crochet Plant Pot Cover Pattern with Granny Squares! This easy-to-follow pattern creates a beautiful plant pot cosy made from cheerful flower granny squares – perfect for brightening up your home décor or giving as a thoughtful gift.

What next?

I hope you’ve enjoyed this tutorial, please do stick around and see what else you’d like to try on my website. You can find my other stitch tutorials here. You might like to learn the Waistcoat stitch!

I’m Gemma, a crochet tech editor, designer and overall crochet enthusiast. I’m also a mum of 3 kids, and enjoy running, reading, walking and crafting, but mostly crochet!

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If you enjoyed making the single crochet stitch or maybe made a project using this tutorial, please consider sharing it to social media tagging @concretegemscrochet

Join the Concrete Gems Crochet Community for pattern support!

Other crochet patterns you might enjoy

• Simple Crochet Triangle Shawl Pattern – easy yet stunning with a gorgeous drape
• Easy Crochet Cushion Cover Free Pattern – a geometric mosaic crochet design
• Granny Square Bag Crochet Pattern – a fun, quick sling bag with granny squares

Thanks for reading and happy crocheting! 🧶