What is double knitting?

Everything you need to know about double-sided knitting. What it is, how it’s done, and how to use it.

Did you read a pattern or saw a post online where they talking about double-sided knitting? A project that has no wrong side and two distinct sides of colorwork instead? And now you are wondering what exactly is double knitting? How do you knit it and what is it for?

Well, then you come to the right place. This little tutorial is all about double-sided knitting. I’ll talk about the basics first and then I’ll show you the most common techniques and how to use them.

So, let’s dive right into it!

Note: Don’t forget to check out my full tutorial on double knitting on youtube.

Definition: What is double knitting

different types of double knitting side by side

Double knitting describes a number of knitting techniques where you knit two separate pieces of fabric on only one needle by slipping stitches without knitting and/or carrying a second yarn in a special way so it does not interfere with the visible front side. It can be used to…

  • knit two separate pieces at a time,
  • to create intricate colorwork,
  • to knit a fully reversible fabric that is twice as thick,
  • or as a smart way to knit in the round on straight needles.

It is important to note that there is not THE double knitting technique. Instead, there are quite a couple of different methods that share one fundamental principle: You are knitting two sides at the same time. And depending on whether you are using two different yarns/colors, and if you interlock the two sides (or not), a different fabric emerges.

Most commonly it refers to a reversible colorwork technique where you knit with two strands held together. You cast on twice as many stitches (one for each side), and only knit each stitch with one color, holding the second color in a way it will be hidden between the two layers you create.

Note: Sometimes you also read double face or double-sided knitting. All these terms describe the same thing. Double knitting yarn has, however, nothing to do with this method. Though maybe a bit confusing, the latter only describes the weight of yarn and not the technique you use it for. Check out this post with common knitting terms and what they mean.

Is double knitting hard?

a double knitting project still on the needles with one side in white and the other side in purple

Now, there is a common misconception that double knitting is hard. And it really isn’t all that difficult. In fact, if you know how to knit the knit stitch and the purl stitch, you already know almost everything you need to know. Okay, you also need to know how to slip stitches from one needle to the other but I don’t think that is a particularly high entry barrier.

I would say it is by far the easiest colorwork technique in knitting perfectly suitable for beginners past their first couple of projects. It is much easier than Fair Isle or Intarsia but equally as versatile.

With that being said, you should know that, since you are knitting a double-sided fabric, projects will also take twice as long to finish. Plus, knitting colored motifs requires you to follow a chart (either of your own making or from a pattern). While it is super easy to read a simple colorwork chart (see below), it may take an experienced eye to keep track of your progress.

Different double knitting techniques & uses

As I already said in the introduction, there are a couple of different double knitting methods, and I quickly want to show you the most popular ones and what they are good for.

#1 Double Stockinette Stitch

a swatch knit in the reversible double stockinette stitch

By far the easiest way to do double knitting is using the double stockinette stitch. You can even start with only one yarn/color and still create a reversible fabric that is twice as thick.The repeat is actually remarkably simple:

I recommend using a relatively small needle and a slightly fuzzy yarn. But other than that, it’s a super simple pattern and the perfect entry project to the world of double-sided knitting.

This method is perfect for scarves and other simple flat projects you want to be twice as warm. It can also be a great selvage to keep knitting from curling, and you can even use it to create little pockets in your fabric you can later use for quilting or inserting drawstrings, wire, etc.

Read my full double stockinette stitch tutorial here

#2 Standard Double knitting

a swatch knitted with the double knitting technique with various tools in the background

Once you understand the basics, you can also pick up a second color. Double Stockinette Stitch works because you are essentially knitting each row twice. But you can also knit with two-strand held together instead. Sounds complicated? Not at all, it’s actually both easier and faster. The basic repeat is:

  • Cast on an even number of stitches
  • Step 1: Bring both strands to the back of your work and knit one stitch using only yarn A
  • Step 2: Bring both strands to the front and purl one stitch using only yarn b
  • Repeat steps 1+2

Here’s my full tutorial on the standard way of double knitting (where I explain everything in great detail + there is a video)

Now obviously, there’s a bit more to this technique, as you probably want to create colorwork, etc. You also will have to learn a special selvage method that keeps your knitting from falling apart, there are certainly more invisible ways to cast on for double knitting, and there is a special bind-off involved you need to learn as well.

Still, those are techniques for advanced knitters. The basic technique with a few simple twists will get you quite far. So, don’t be scared! This method is great for colorwork and reversible projects in two colors (like a hat that you can wear two ways) etc.

#3 Two at a time

knitting two at a time with one knitting needle using a special cast on method that keeps the pieces separate

Orignally, double knitting probably emerged as a way to knit two pieces at the same time. SSS – Second sock syndrome is a common “malady” among knitters and double knitting provides you with an easy solution. The technique is virtually the same as in standard double knitting – you only skip the selvage stitches and you need to do separate cast-ons.

Of course, you can also double knit in the round. The technique is very versatile. You can also double knit ribbing or other complex patterns – there are almost no limits. As you twist the yarns in colorwork, there is no feasible way to knit with two colors (on one side), though.

Why would you do this? Well, a lot of fitted garments are knitted in pairs. Socks or the sleeves of a sweater are two very popular examples. And under normal circumstances, you want both to be exactly the same. So, if you are someone who gets easily confused about when and where you placed an increase or decrease, this is a very valid technique to produce two identical twins every time.

#4 Brioche Stitches

a swatch finished in the half brioche knitting stitch pattern using two colors

Experienced knitters may be a bit puzzled that I mention the brioche stitch in an article about double knitting. However, if you think about it a moment longer, it is actually quintessential double knitting. The only difference is that you cross the yarns with every stitch and thereby create a different sort of look where you can see both colors at the same time (and no pocket in the middle).

But that doesn’t change the fact that you are knitting each row twice and you are slipping every second stitch without knitting. And in fact, realizing that the brioche stitch is nothing else but double knitting makes a lot of things much easier – like increasing or decreasing.

Much like double stockinette stitch, brioche stitches are best used for warm winter wear. They are reversible and super voluminous. You can’t really do any colorwork, though. You can only knit each side with a different color.

How to read a chart

a double knitting chart
Note: Chart and project do not match. Didn’t pay attention when taking the pictures of my swatches

There is one thing you will have to deal with when doing double knitting: You need to learn how to read a chart. I know it sounds super scary, and I know a lot of knitters who shy away from it like it was the plague. Now, I do urge you to read the full tutorial I just linked. That being said, when it comes to colorwork, charts are super simple.

Basically, each square stands for one stitch. And the color of the square will tell you which color you have to knit your next stitch.

So, you are starting in the bottom right corner (exactly where you place your very first stitch as well – you are knitting right to left as well, after all). And then, check what the square tells you to knit. And then, you move your finger to the next little square, check the color of it, and knit the next stitch with that yarn. If it is a flat project, the return rows are always read from left to right, and the color code will be exactly the other way round (so pay attention!).

There are two things you need to be aware of:

  • Double knitting is always done in pairs. So, unless otherwise specified, if there is a square in color A, this automatically means you have to knit (or rather purl) the paired next stitch in color B and vice versa.
  • Some double knitting charts come in black and white. Usually white will be your main color for the right side, and black the main color for the wrong side. There should be a legend that tells you which color means what. And if there isn’t, remember that double knitting is reversible and it probably makes no difference as long as you stick to your decision

Anyway, I hope you now know the answer to “what is double knitting”. Feel free to ask your questions in the comments below.

28 thoughts on “What is double knitting?”

  1. Thank you for this page. I’ve been wanting to try double knitting and this gives me some courage to try it out.

  2. Newbie here! I love this stitch and I’m using this stitch for a scarf but I want to add stripes in a different colour. I can’t figure out how to do the slip stitch keeping the next colour, the ‘v’ turns out to half of each colour, I’d prefer it to be a distinct line between the two.

      • Two questions
        1. When working in the round, does one still always knit MC, and purl CC?
        2. How does one work a jogless join in double knitting in the round?
        Great tutorials and videos!

        • well, when doing double knitting in the round, you just stick to the repeat you would do in a rightside row. So yeah, you knit the stitches for the front and purl the stitches for the back.
          As for jogless join. You can use the same method you normally use when knitting in the round. it will be a bit fiddly to do that on the backside…and depending on your gauge it actually may not look very pretty.

        • Darn. I was hoping that you’d have a brilliant substitute for the non-reversible, “messy backside” problem. Next step will be to (virtually) flip through some really old needlework magazines…

          • well, i HAVE a solution. Just said it was fiddly. Just knit a k1tog into the front and a p1tog into the back. But hey..it’s not easy 🙂

    • I think Rachel is doing garter stitch which means when the new colour is joined the stitches will be half and half of each colour. Stocking stitch will ensure the stripes of colour will be solid.

  3. I was watching your video on this technique and thought I heard you say that you should knit with smaller needles than you normally would and to also do this with stranded color work (like fair isle). Maybe you say it in a different video, or not at all. I tried watching it again to listen for it but am either missing it or have the wrong tutorial.
    I have a color work project I’m working on, a Christmas stocking, and have made my own pattern using basic techniques I’ve learned knitting socks. I am using DK weight yarn, would it be correct to use size 3 (3.25 mm) needles?

    • Yes, when doing colorwork I would always go down one needle size. I can’t help you with your yarn tho. DK just means it’s an 8-ply. Depending on the fiber and the way it was spun, you may need a different needle size.
      Just knit a small swatch and check if you like it. stretch it out a bit, of course.

  4. When you are changing colors towards the end of the row, (the last two where you slip to make a cleaner edge) how do you change colors? So baffled on how to do this without adding extra stitches.

  5. I am doing a reversible double knitted blanket that is garter stitch showing on both sides. I understand how to knit double sided but it always comes out in stocking net stitch. Help!!

    • Hey Deb. read my double knitting tutorial where I show you how to do ribbing etc. In normal double knitting you purl every second stitch but if you want garter stitch, you obviously have to knit that as well.

  6. I have an ambitious project in mind for my first double knitting project. A Chanel style cardigan where in the front I want to use several different yarns (from colourful to frilly) and the back (=inside) one solid colour as sort of a lining. In fingering weight. I’m thinking following 2-colour double knitting will be the way to go.
    Any tips? Any links you’d recommend? Any books? I’m an advanced knitter but haven’t done any double knitting before.

    • that is one ambitious project and I definitely recommend knitting a little potholder using the same motiv/yarns to try things out. Do test, decreases/increases and the like (you’ll probably need these). Cardigan also requires you to pick up stitches (probably) for the buttons..soo…I would test all that on a swatch before I commit. It certainly can be done but as a first project…well I’d make sure you understand the limitations of double knitting and possibly your stitch definition (which I know nothing about).

  7. I am making a hat in double knitting so it is reversible. It has right and left leaning decreases with double yarn overs (yarn over carrying both yarn colors over a single time) but then the next direction after ever Double Yarn Over (DYO) is “W1P”, and I cannot decipher what that abbreviation means. The entire internet is no help. Can you explain what the acronym W1P means in Double Knitting?

    • very difficult for me to tell because it’s probably a custom abbreviation the designer uses. Have you checked ravelry and what other knitters did?
      I only know a similar think in the context of short row techniques and it would probably mean wrap one purl. But very difficult for me to tell without context.

  8. How do you do decreases and cables in double knitting? I can complete basic double knitting patterns, but would like to do a double knitted winter headband with a cable pattern on the main side and fur lined inside without having to sew the fur lining. Any guidance you can offer would be greatly appreciated.

    • cable and double knitting doesn’t really work. But you can achieve the same with a provisional cast-on and seaming things together later on.

  9. Hi, I am using this technique to create a patchwork blanket with different patterns for the patches. I finished my first patch and instead of being square it is a rectangle. I’ve tried blocking it but it is just much wider than it is long.
    The pattern I was using was square (same number of rows and stitches) so I was just wondering if there was anything obvious that might be causing this or anything you would suggest trying.

    As I am following a pattern it would be a lot of work to change the number of rows etc so if there are any suggestions other than this I would really appreciate it

    • Stockinette stitch does not have a square guage. So if you knit 10 stitches across 10 rows, the result will always be a rectangle. Only garter stitch has a square gauge (well, or rather, 10 stitches times 20 rows will be a square).


Leave a Comment