Many triangular shawls – including our own designs – begin at the centre back, with a small number of stitches, and then grow in ever-lengthening rows, which form 2 triangles, separated by a centre stitch.
A garter-tab cast-on is recommended, as this technique creates a small rectangle of garter stitch, which blends seamlessly with the garter stitch edging which forms the top horizontal line of the shawl. It is a bit more work than just casting on stitches normally, but the results are worth the extra effort.

This tutorial covers
- The difference between a garter tab cast on and a regular cast on
- Method 1: With a provisional cast on
- Method 2: With a regular cast on
This tutorial will illustrate how to execute the garter tab cast on instructions from our free Grain shawl pattern from the Simple Collection . Tutorial shown in Brooklyn Tweed Arbor in ‘alizarin’, ‘tincture’, and ‘wreath’.
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What’s the difference?

The image above shows three methods for casting on a centre out shawl:
- The red swatch uses a provisional cast-on and a garter-tab.
- The green swatch uses a regular cast-on and a garter-tab.
- The yellow swatch above uses a regular cast on, without the garter tab. You can see how there is a gap at the top. The garter tab cast on is used to bridge that gap.
The difference between the red and green is subtle, I will outline how to do each these two methods below.
Method 1: provisional cast on and a garter tab
Garter tab cast on: Cast on 3 stitches provisionally. Knit 6 rows. Knit 7th row, then pick up 3 stitches along the border of the small garter rectangle you have just knit, then undo the provisional cast on and put the 3 cast-on stitches on the left hand needle, and knit them. [9 stitches]
- Provisionally cast on 3 stitches. You can use this method (the crochet chain provisional cast on) or this method (the needle and hook method) to do this.
- Knit 6 rows
- Then you will knit a 7th row and pick up and knit 3 stitches along the border
- Next you will unzip the provisional cast on and place the live stitches on the left hand needle. Then knit those stitches.






Voila!! You now have cast-on a total of 9 stitches! This method is a little fussy but comes out pretty perfect.
Method 2: with a regular cast on
The second method accomplishes the same thing as method 1, but instead of working the provisional cast on, you are going to use a regular cast on and pick up and knit stitches from your cast on. If you haven’t picked up and knit stitches before check out our tutorial here.
Garter tab cast on: Cast on 3 stitches. Knit 6 rows. Knit 7th row, then pick up 3 stitches along the border of the small garter rectangle you have just knit. Pick up and knit 1 stitch in each of the 3 cast-on stitches [9 stitches]
- Cast on 3 stitches (use your preferred method)
- Knit 6 rows
- Then you will knit a 7th row and pick up and knit 3 stitches along the border
- Next you pick up and knit 1 stitch in each of the 3 cast-on stitches
You can see this method comes out a teeny tiny bit less perfect at the garter tab, but it really depends on how fussy a knitter you are! For more on our simple Grain shawl check out the tutorial here.
Choose the method that works for you
There’s no right answer here, choose the cast on method that works for you! If you want to use the lease fussy method of all, and just cast on 9 stitches, it’s your shawl, go for it. If you’re more of a perfectionist, use the fussiest method. And for those of you in between? There’s a middle ground too!
More Great Shawls from Tin Can Knits
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Tips and Tricks: Trestle Shawl – whiteowlcrochetco.
February 18, 2021 @ 6:18 pm
[…] The garter-stitch tab is a similar method to that used in this pattern, albeit with a different stitch pattern. Click here for the garter-stitch tab tutorial:https://blog.tincanknits.com/2009/08/02/garter-tab-cast-on/ […]
November 29, 2020 @ 10:05 am
Thank you so much for this tutorial! I have a silly question. I’m trying to make the oaken shawl. After I’ve done the garter tab, what’s my next step? Is is the “Set-up row (WS)“ from the oaken pattern?
Thank you!
November 29, 2020 @ 10:03 am
Thank you for this wonderful tutorial!! I have a silly question, I’m trying to make the Oaken shawl, once I’m done with the Garter tab, which step is my next step? Is it the “Set-up row (WS)”?
Thanks!
November 30, 2020 @ 11:18 am
Hi – Yep! The set-up row is next.
August 27, 2020 @ 2:33 am
This tutorial was excellent well explained
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March 22, 2020 @ 2:24 am
[…] : le garter tab cast on, qui évite d’avoir un trou au milieu de la bordure du châle. Le site internet de Tin Can Knits propose plusieurs versions de ce montage, je n’aime pas trop le montage provisoire, donc […]
October 10, 2019 @ 1:47 pm
Splendid tutorial! I think I can do this now… Thank you.
June 7, 2019 @ 9:24 pm
Nice tutorial..
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January 26, 2019 @ 9:27 pm
[…] Many triangular shawls – including our own designs – begin at the center back, with a small number of stitches, and then grow in ever-lengthening rows, which form 2 triangles, separated by a center stitch. A garter-tab cast-on is recommended, as this technique creates a small rectangle of garter stitch, which blends seamlessly with the… — Read on blog.tincanknits.com/2009/08/02/garter-tab-cast-on/ […]
January 23, 2019 @ 3:43 pm
Thank you for this. It was a great tutorial.
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October 26, 2018 @ 7:54 pm
[…] Illustrations by tin can knits: https://blog.tincanknits.com/2009/08/02/garter-tab-cast-on/ […]
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September 14, 2018 @ 10:53 am
[…] them rather finicky and just fudged my way around them. But then I found this picture tutorial from Tin Can Knits that explained everything perfectly! So if you’ve ever had trouble starting a shawl with a […]
July 9, 2018 @ 7:22 am
Muchas gracias. He aprendido mucho contigo.
June 1, 2018 @ 11:13 am
Thank you!!! This is the most helpful tutorial I’ve seen for the garter tab cast on! I think I can do it now :)
February 23, 2018 @ 8:50 am
This is the best non-verbal tutorial I have ever seen for garter tab cast on’s. Thank you very much.
December 25, 2017 @ 11:03 pm
You are amazingly clear with this process. I love the photos as well. Excellent teaching skill.Thank you so very very much. English is my second language and you make it so easy and clear for me. Bravo! S Johnson
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[…] Garter Tab Cast-On – the AMAZING Tin Can Knits lady. I need more reading-time to awww and ahhh over her blog. I’ll admit I found the garter tab cast-on I tried -using laceweight yarn ; lace weight. As a #newbieknitter I’m not laughing YOU’re laughing. Pahahahahahaa – very daunting then I found this. And the rest of her blog. My life, this woman rocketh muchly in the knitting world. *Wayne’s World Moment* (this .gif is going to appear a LOT in this blog) […]
December 27, 2016 @ 6:44 am
Okay, I followed over to this post because I was interested in the current “let’s knit a simple shawl” knit-along–and I still am!–but this is even better!
I’ve been avoiding the provisional cast on forever, but I think your thorough tutorial and side-by-side comparisons of the three methods (not to mention the tiny, perfectly feel-free-to-mess-up-and-start-again-without-tears samples) have convinced me to finally learn it. Thanks for lighting a fire under my scaredy-pants backside!
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[…] tricky thing about this shawl, and that is the cast on. There are a few different ways to work the garter tab cast on, a most fussy way, a medium fussy way, and skipping it altogether and simply casting on as you […]
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October 10, 2011 @ 2:50 am
Oh thanks! so much. I have finally just understood!!
Muchas gracias!
September 23, 2011 @ 2:32 pm
Yours is the first explanation of provisional cast-on that has made sense to me. Thank you so much for this valuable tutorial. I’m now looking forward to trying several patterns I once was afraid to attempt.
September 20, 2011 @ 2:47 pm
Thank you so much for this tutorial!!!
Muchísimas gracias, es perfecto para el chal que quiero hacer.
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July 23, 2011 @ 7:44 pm
Thank you! I just started the Daybreak shawl and ripped it out because I knew I’d done something wrong. I’m so glad I found this!
May 24, 2011 @ 7:10 am
Dear Emily,
Thank you so much. This is just what I was looking for. I knew how to begin a triangular shape without the tab, and wanted a more complete way to do it.
Isn’t it lovely that all of your good cheerful work is being found and used almost two years later. May there be many more. Thank you, again.
May 18, 2011 @ 9:49 am
I wish I had found this tutorial when I made my Ishbel. I must have ripped out 20 times. I had to cut off the end of my yarn because it was so frayed. Thanks much for a wonderful, easy to follow tutorial.
April 19, 2011 @ 10:05 am
Thank you so much for this tutorial!!! I tried several times to figure it out from the directions but failed miserably. I really needed the pictures to describe it. Thanks again!
March 17, 2011 @ 4:23 pm
Thanks for the pictures and explaination. I got to “see it” to understand. I appreciate the time you put into this.
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January 28, 2011 @ 6:12 am
Thanks for the help. I am starting the pattern from Knitty of Citron:)
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January 26, 2011 @ 9:10 am
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January 8, 2011 @ 5:50 am
Thanks so much for this great tutorial! The pictures are very clear and I am now ready to go!
October 11, 2010 @ 12:52 pm
Beautifully illustrated garter stitch tab!! Thank-you!
As a visual learner, I struggled repeatedly with the written instructions for the garter stitch tab. And then, I found your instructions and photographs. And voila,… I am finally able to get my lace project started.
Again,… very nicely done!!
Corinne
October 4, 2010 @ 2:34 pm
This tutorial makes sense and since I am a visual learner, I will save this and use it when I start my shawl.
TY…Abbie
August 14, 2010 @ 5:30 am
Very helpful!!!
June 18, 2010 @ 9:55 pm
Thank you-this is so clear with great photos!
May 21, 2010 @ 9:27 am
This is a wonderful cast-on. Thank you for a photo-riffic tutorial!
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January 22, 2010 @ 5:17 pm
This is just wonderful! I’m starting my first lace shawl and was so sure I was doing things wrong. Thanks for a great tutorial with clear pictures AND written instructions.
December 1, 2009 @ 6:39 am
Thank you so much for the clear explanations and illustrations!
I am an absolute beginner of lace shawl knitting and have a hard time understanding how to begin my first shawl by reading the instructions on the pattern…
November 14, 2009 @ 12:06 am
Oh many thanks! I have finally just understood!!
November 9, 2009 @ 3:00 am
These instructions are extremely helpful! Thank you for making this tutorial.
I’m wondering if you can help me with something else. I’m working on the Swallowtail shawl http://www.evelynclarkdesigns.com/pdf/Swallowtail.pdf and I have finished everything except the border, because I can not for the life of me, figure out how to start it. Could you maybe explain this or point in the direction to a tutorial? It would be greatly appreciated.
September 5, 2009 @ 1:38 am
Oh, bless you for this! I’ve just started a triangular shawl which starts with a provisional CO and the garter stitch tab (nice term!) but doesn’t clearly identify taking the CO out to get the last three stitches. I thought I knew what to do but your post clarified it beautifully, thanks so much!
August 7, 2009 @ 10:25 am
Great instructions! thanks!
Socks In Progress «
August 3, 2009 @ 12:16 pm
[…] to see the colors she picked out for our Ulmuses. Hopefully, between the advice of Meezermeowmy, Damp City Knit’s Garter Tab How-To and a few other resources we will manage the pattern without too much […]
August 2, 2009 @ 1:52 pm
These instructions are very clear, but — using this method — will I still get the points such as on the Entomology shawl or your Photosynthesis shawl?
August 2, 2009 @ 2:29 pm
Nancy – The Garter Tab Cast-on method is how you start your shawl – when you get to the very end of the shawl, and work the lace edging and bind-off, you are working the part of the shawl that forms the scalloped edging. So the little garter tab is almost invisible at the end, because it is in the center back of the piece of lace. It is the last few rows (at the bottom edge), and the way that you block your shawl which determine how the edge will look.
So Yes – you will still get the scalloped edge with points as you see on the Etymology or Photosynthesis shawls!
Cheers – Emily