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How to Invisibly Seam Granny Squares

I love granny squares because they make it so easy to play with exciting colors. Often, my squares end up with different colored borders, so how do I choose a shade to seam them? The answer's easy: I can use any color because I use an invisible seam! This super easy technique creates a durable seam that disappears into your crocheting. Ready to get started? Gather your granny squares and follow the steps below!

How to Invisibly Seam Granny Squares

Step 1: Gather your materials: finished granny squares, a blunt needle, and your seaming yarn (I used a contrasting yarn for demonstration, but you may want to use matching yarn). Lay your granny squares side to side with the front side facing up.

Step 2: Insert your needle into your first crochet stitch from the back to the front.

Step 3: Repeat Step 2 on the opposite side. Continue this process on each stitch, alternating between sides. It's sort of like lacing shoes.

Step 4: Ready for that seam to disappear? Lightly pull on both ends of your seaming yarn.

Step 5: Repeat with all squares, and that's all there is to invisible seaming! Remember to weave in your ends and enjoy your new granny square project.

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  • Grace Jones

    Great post Jess! I appreciate the excellent quality photos and the lovely color choices.

  • Kgcrosthwaite

    Great idea! Thanks for the tutorial!

  • Tiffany Kohnen

    I had always wondered how one went about piecing granny squares together. Thanks for this awesome blog post!

  • Marion Brookes

    thank you so much i havejuststarted another granny square blanket and this is sewing up so neat

  • Sdryden

    I just love stuff like this - Thank you

  • Wendy

    Thank you for the tutorial. I avoid granny squares because of the seaming.

  • Diane

    Now could you please do a post on how to weave the ends in on granny squares so they stay put?  That would be another great tip to share!!!  Thanks!

  • Cadence

    What is the yarn used here?

    Also, would it be more "invisible" if a smaller weight yarn was used for the seam than the actual squares?

  • Tryglyph

    Thanks so much! I have a big pile of granny squares I have been stuck on, because I didn't know the best way to put them together! There's hope for this blanket yet!!

  • Elaine

    Like Wendy, I too avoid granny squares because of the seaming, but I recently started squares for a blanket for my greatgranddaughter due in about a month.  Thanks so much because I didn't like the way it was going together and now I can get it finished in time for Ella Rae's birth. 

  • Debquigley

    Thanks. This was helpful. Is there a way to weave in the loose ends when changing colors when making the squares themselves?

  • Debquigley

    Thanks. This was helpful. Is there a way to weave in the loose ends when changing colors when making the squares themselves?

  • Steph

    Thanks so much. I am bookmarking this for future reference;)

  • Steph

    Thanks so much. I am bookmarking this for future reference;)

  • Susan

    Is there any way we can see the back. Does the tread show up there?

  • Sherrie

    thank you, this will be very helpful.

  • Mary L

    Susan asked the question I wanted to know.  Do the stitches show on the back side or are the  hidden there, too?

  • Faith

    That's a great tip - thanks!

  • Pat Fulton

    Thank you very much for that help. I love the easy to follow instructions, and close up shots. Even I, can do it now.  Very pleased. :>))))))))))

  • NWDigitalMedia

    Still, this is why I stay away from granny squares. Love to do them and have one I completed last Fall, but not put together! I would rather find a way to do an continuious seaming.

  • Linda Kwakman

    Ik zou ze willen doen met de vasten bovenop,hoe pak ik dat aan!

  • Linda L.

    I just tried this and the seam really does seem to disappear both front and back! I can't thank you enough - now I can get started on the hexagon afghan I've been wanting to make. :)

  • Jenie48

    It makes me want to try one! Thanks for the tip.

  • Miniechat

    Bravo, I have avoided Granny Squares because of the ugly joining.  This is lovely.  

  • Katia Angelotti

    Perfeito, adorei!!

  • Stephanie Krebs

    I needed to see this post yesterday morning before I put together a granny square blanket.  The blanket is still cute but this would have made me so much happier.

  • Kd7qyy

    Thanks for the instructions.  I have a Granny Square afghan that my mother made.  She could never join the squares to her satisfaction because she didn't like the seams showing.  Now I can put this together and enjoy her fine stitching.
    Thanks again!!!

  • Cdecina

    Thanks!!! this is a big help. 

  • Christine Long Derks

    That is GORGEOUS!  Thanks for sharing!  I've used mattress stitch in knitting and never thought of using it for joining granny squares!!

  • Wpike

    I have never like to sew pieces together, so I always tried to make something that didn't need sewing.

  • Krista Ruskin

    Is there any tricks to joining the corners neatly? That's where I struggle.

  • Crochet Projects & Resources | Pearltrees

    [...] Step 2: Insert your needle into your first crochet stitch from the back to the front. Step 3: Repeat Step 2 on the opposite side. Continue this process on each stitch, alternating between sides. How to Seam Granny Squares | Lion Brand Notebook [...]

  • Anna Gabriella

    Thank you for the tutorial, a mystery is solved now. 
    Köszönöm a leírást, egy rejtélyt oldottatok meg. 
    Greetings from Hungary, Europe

  • Jrzehr

    After you sew all the squares together how do you get the blanket to stay together? If you are just weaving ends in, wouldn't they just come back out? My first blanket was a granny square and I crocheted the squares together, while they stayed together a few of the individual squares came apart. Help?

  • Merewing

    Never realized until now why I have so many granny squares and no blankets. I never liked the way my first granny project looked when it was complete. Nice to hear I wasn't alone! This will finish lots of projects for all of the new babies due in this year. Instructions are easy and perfect. You did a great job.

  • Peki

    Thanks for this cool tip. I can not wait to try it on my next project

  • Patricia

    Thanks for doing this tutorial. I have always done my seams this way as I don't like that ridge effect that the other types of seams create. Glad to see it finally on the web. I have only found this technique in very old books, the latest books don't appear to include it for some reason.

  • Lrhoades54

    Yea now I can finish my grandson's afgan that I started 8 yrs ago.  Just because I didn't know how to put it together it is still sitting in the closet.

  • Janet

    Gorgeous! About many skeins of each color of this Martha Stewart Roving Wool would I need for an average sized afghan? Thanks for posting this. It's just what I've been looking for!

  • Dianne

    Fantastic idea thankyou for sharing it with us!

  • Bobbyejo

    GREAT! And Thank You Taryn for the tip on the fabric glue ~ I have never heard of this and can't wait to find some nonhardening fabric glue for all those snippets ~ thanks again to both of you

  • Hissweetie1986

    what is the brand of glue you use for the snippets? I have 3 afghans to finish (I have triplets) and have been dragging along not wanting to piece them together.  This glue would be fantastic!

  • Jazzy Raven

    Geat Tutorial! Thanks a lot for this. :)

  • Learn2Crochet

    Thank you for this tutorial!

  • Sandy

    Thanks for this great demonstration!  I will be trying it!

  • MarciaEK

    Great suggestions!   Hmm, after you have several rows of granny squares, do you have an suggestions for sewing the rows together? I usually have problems with the chain at the corners of each square.  Thanks!

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  • Shirley Muswema

    This is a great tutorial, thanks so much. Do you perhaps have any tutorials on seaming hexagons?

  • Susanwstn

    since i am a novice can u post the instructions for these square?  

  • postele


    [...]How to Seam Granny Squares | Lion Brand Notebook[...]...

  • Mycki22

    Did you just sew through the top loops or the whole stitch? It's hard to tell for sure from the pics. Great tutorial! Not dreading sewing all my squares together as much now. :) Thanks!!

  • Oiseauk

    WOW, that's really something! Grazzi

  • Charlenebusse

    I have inherited completed gr sq's and have delayed sewing them together as it is a drag!  I felt that they would have this awful ridge on the backside and I even know how to do this method you recomend...duh!  Thank you so much for jogging my memory...


  • Flyingicecream

    Just pulled out a couple of my completed granny squares and tried this out,  and it worked like a charm! I used a contrasting color just to see for sure how 'invisible' it really was, and there was just a smidge of the color poking through in a few places so I pulled it out and used the same color as one of the borders and it looks perfect! I pinned this a few weeks ago and I'm so glad I remembered it.

  • Hannah

    wow! just what i needed! I'm making an afghan out of granny squares

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  • Girbska

    thank you for this tutorial!

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  • Colleen

    Thanks...i need to piece together my 1st baby afghan.....keep posting tips like this

  • Donna

    Are you going through back loops only or both loops?

  • Carol B

    I admit I was a skeptic and wasn't quite sure how to follow these directions until I sat down with a couple of squares and did it. It works! You can be sure I will be using this method in the future. Thanks!

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  • Colleen C

    I too like to crochet over the ends as I go. this way when you snip them they stay put. It Works!!!

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  • Vivette Pullum Ashen-Brenner

    I'm a knitter but I do know how to crochet and I've made granny squares...including a huge single granny square in rainbow colors that I made when I was pregnant but I never knew how to sucessfully stitch them to gether.'s a lot like the mattress stitch we knitters use.

  • PlainJane

    When I sew or crochet granny squares together, I work in a zig-zag diagonally across the squares. Picture the next square being placed on top of the left hand square above & sewn into place. This puts all the seam ends at the outside of the finished afghan where they can be worked over while adding an edging. Much less apt to come apart in the middle of the afghan.

  • Zoe

    WOW! Why did I not know this sooner! Thanks for sharing!

  • Joy Merrill

    Super easy to follow tutorial, thank you! Never again will I allow the intimidation of joining hinder me from making squares projects again!

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  • Deb

    lovely clear directions

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  • danielle m

    I think this tutorial is exactly what I'm looking for. But just in case, I had a question for ya.

    Is the seam visible on the other side? I'm making a mitered granny baby blanket and the colors are different where they'll be joining. I want to make sure the squares won't have seams on either side because baby blankets are eventually tossed around by said baby. Hehe.

    Thank you so much!!!

  • Nancy

    If you are joining squares for an afghan, do you join rows with one continuous piece of yarn? Or do you join each square, one at a time, and weave in the ends, before joining another one? I hope this makes sense. :)