Yarn Substitution

Substituting yarn

The question comes up every so often at the knitting meet-up and in the Ravelry forums. It takes the form of “Can I use this yarn instead of that yarn?” and any of a number of variations. And the answer is almost always: “It depends.”

Oh, we want this answer to be a simple “Yes”. But it seldom is. Usually the knitter has a valid reason for wanting to use a different yarn than what was used in the printed pattern: Lack of availability, wanting/needing a different colorway, dislike of the particular yarn, etc. If the knitter happens to select a yarn of similar weight and make-up, the substitution will probably go reasonably well – providing, of course, that the knitter can achieve the stated pattern gauge with the chosen yarn. This is the happiest of all occurrences – the yarn you want to use works out well with the pattern and you can just relax and knit happily on your project.

The subject of matching gauge could constitute the contents of an entire article, if not a book. For the sake of brevity, I will simply state that gauge is essential and that any knitter who wishes to produce a well-fitting garment needs to pay attention to gauge – IF she is following a pattern that contains the concept of “fit” as part of the design. (Gauge is less important with scarves & shawls).

Lindy’s Advice #1: When substituting yarns, it is best to select a yarn that is of the same weight and has the same characteristics as the original yarn. But do a gauge swatch to make certain you do not need to make adjustments so that the garment fits correctly.

Perhaps the most frustrating of experiences with yarn substitution is the situation where you have selected a yarn of similar weight and characteristics – but try as you may, you cannot achieve the stated gauge. The advice is usually to go up a needle size or two if your gauge has more stitches and to go down needle sizes if your gauge has fewer stitches. If this works, then wonderful! Proceed with the project. But if, in spite of the change in needle sizes, you still cannot get the stated gauge – well, this can be a significant problem. Being off a half a stitch doesn’t seem like much, but when multiplied over a large number of stitches (say 100 or more), it becomes quite significant and the result is a garment that doesn’t fit properly. You have two options in this situation: 1) try a different yarn (yep, try another one) ; or 2) get out your calculator and start calculating the adjustments needed to ensure a proper fit.

Note: If math makes you anxious and you would never consider recalculating the number of stitches you need to make the garment using your yarn and your gauge – then skip this next part.

Here are the basic calculations you’ll need to make the appropriate adjustments:

Pattern Gauge states “20 stitches and 20 rows = 4 inches” (5 stitches/inch and 5 rows/inch)

To adjust pattern width (i.e. your stitch gauge is different):
Your stitch gauge is 22 stitches = 4 inches. Which is 5.5 stitches per inch

Pattern instructions state that the back of the garment measures 25 inches at the bottom and says to cast on 125 stitches. To adjust for your gauge, you would need to cast on 25 X 5.5 = 137.5 stitches – you will need to round down to 137 stitches so that you have an odd number of stitches, since the pattern has an odd number.
You will need to make similar calculations for width measurements throughout your pattern – it is best if you go through and do this before you starting knitting.

Adjusting pattern length may or may not require some math. If the pattern has instructions that use length (inches) rather than rows, it really isn’t necessary to calculate the number of rows required with your gauge, because you can simply knit to the desired number of inches.

However, if the pattern contains instructions such as “knit 40 rows then begin shaping” – you may want to calculate the adjustments needed, as follows:

Your row gauge is 30 rows = 4 inches – which is 7.5 rows per inch

Pattern row gauge is 20 rows = 4 inches (5 rows per inch)
To calculate the number of rows you need to knit to be equal to the 40 rows called for in the pattern :
40 rows ÷ 5 rows/inch = 8 inches
8 inches X 7.5 rows/inch = 60 rows – so instead of knitting 40 rows then begin shaping, you would knit 60 rows.

A shortcut in these calculations would be to go through and calculate the number of inches that need to be knit using the row gauge of the pattern and then just knitting to the calculated length.

This can be a daunting bit of calculation – but it will result in a better fitting garment with your desired choice of yarn and is thus, worth the effort.

So far, I have discussed what considerations are needed when substituting a yarn of similar weight and characteristics with another. Now about substituting an entirely different weight of yarn…

I have attempted this several times and have not been happy with the result each time. Hence, Lindy’s Advice #2: No matter how much you love the yarn you want to substitute and the pattern, if the yarn is not the same weight and/or does not have the same characteristics as the yarn used in the pattern – DO NOT use that yarn with that pattern.

I know, I know – you really want to use this yarn, but it’s like trying to fit a square peg in a round hole. I feel your pain, I really do. But don’t do it, you won’t be happy with the result.

I think every knitter has tried using bulky yarn for a worsted weight pattern or visa versa. The results have probably been disappointing and the garment was either too big or too small. It certainly was for me.

I know of many knitters who have attempted to double-strand worsted weight or sport weight yarn to substitute for bulky weight. It can be done with some success, but once again – you have to do a gauge swatch and make the necessary adjustments for differences between your gauge and the pattern gauge. You just can’t get away from the math…

But wait! There is a way to substitute yarn so that it doesn’t drive you crazy: “Free yourself from the pattern”.

Huh? What do I mean by that? Well, as a knitter you will eventually reach a point in your knitting experience when you begin to understand the basics of garment design and construction. Granted there are literally hundreds of thousands of written sweater patterns available. But any sweater has a front, a back, two sleeves and a neck. If you understand how to construct the basic parts and match them to your desired body measurements – you really don’t need a specific written pattern.

Let’s start with that pattern you want to knit with a different weight of yarn. What are the characteristics of the garment? How are the sleeves shaped? How is the front shaped and how is the back shaped? What do you like about this pattern?

Does the pattern use a textured stitch patterning or does it have a particular colorwork patterning? Are there charts for the stitch pattern(s) or the colorwork pattern(s)? You can use these to make your own customized sweater with your chosen yarn.

How? Well, it will require some thinking, some planning, some math (sorry!) and a very good set of body measurements. Armed with the knowledge of sweater design – you can go from carefully following a written pattern to using the pattern as an inspiration for your own custom designed sweater.

I will outline how to do this in my next post. Off to find my sweater design references…

1 thought on “Yarn Substitution”

  1. This is really helpful.

    Maybe in the sweater design part you could answer questions about sizing? What if your pattern doesn’t have your size?

Comments are closed.

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Cast On MethodsCast On Methods

This is the first post about Cast Ons. There have been several books written about different cast on methods as well as many chapters in general knitting references and YouTube videos. What I know now as a long time, more experienced knitter is that there a lots and lots of different ways to accomplish the task of putting the first stitches on your needles so that you can begin to knit. But when I first started knitting, I only knew one way to cast on. That’s because, as I believe is the case for most beginners, I was only taught one way to cast on. And I suspect that my knitting teacher taught me that cast on because it was the method that she knew.

While visiting my older sister, I learned to knit from a woman who sold yarn kits and gave knitting lessons in her apartment. So, my first knitting project was a slipper pattern kit that came with the yarn, a set of needles and an easy beginner level pattern. I think I had maybe two lessons from her and I was off to knit on my own. My teacher taught me the “Knitted Cast On” method. I used this method for a long time before discovering another cast on method – the “Backwards Loop (or E-wrap)” cast on.

The first time I encountered the notion that there were other ways to cast on was when I was knitting my very first sweater and I ran into an issue and needed some help with my project. Now, I lived in a very small town and there weren’t many people who knew how to knit. My mother located a neighbor who did and was willing to help me, so I went over to her house with my sweater. The neighbor did help me get my problem fixed – but what I remember most clearly about this session was what she said about my cast on: “Oh, you cast on wrong.”

My 11 year old self didn’t comment on that statement, but I was doing a slow burn because “I DID Cast on the right way.” I had used the knitted cast on that I knew. A lot of time passed between this incident and my learning that there are many ways to accomplish the same thing in knitting. And – I am still learning different ways to cast on!

So, in this series of posts about cast ons, I will discuss the cast ons that I currently know how to do and when and with what projects I use them. Since it was the first one I learned, I’m starting with the Knitted Cast On.

The knitted cast on is an easy cast on to learn as a beginner. Essentially, you create your first stitch on your needle by making a slip knot, placing it on the needle and start the cast on by knitting  a stitch through the loop using your other needle. Once you have the stitch on the right hand needle, you slip it back onto the left hand needle and tighten it up a little, then knit into that stitch and repeat the process until you have  the desired number of stitches.

Where I use this cast on:

  • When I want a fairly firm , yet somewhat stretchy edge: project like scarves, some shawls, blankets
  • Casting on for underarm stitches or thumb gussets in gloves or mittens

Here’s a YouTube video on this cast on: Knitting Help – Knitted Cast On

Next Post: e-Wrap (Backwards Loop) and Cable Cast On Methods

Combinations of Knit & Purl – Simplicity or Complexity?Combinations of Knit & Purl – Simplicity or Complexity?

The other day while waiting for my MIL at the beauty shop, I took out my baby blanket and sat knitting in the waiting area. One of the stylists came up to me and asked me what I was knitting. So I showed her. Then she said, “I could never knit anything like that – it’s too complex.” I replied that this pattern was actually very easy – it was just a three different combinations of knit and purl stitches, and I showed her the graph of the pattern square. She then told me that she had once knitted a sweater for her granddaughter that had a color pattern of a frog. So, I told her that if she had done that type of color knitting, this textured pattern would be easy for her to do. She replied that “maybe, she could do it – BUT she didn’t think she’d ever be able to master anything like cables”. So in spite of my gentle encouragement, I’m not certain this knitter will try to knit something with a variety of textures – which is too bad, because she will miss out on some wonderful knitting projects.

Have you ever limited your knitting by such thinking? I know I did many years ago – but after discovering Elizabeth Zimmerman’s approach to “unventing” things, my perspective has changed greatly. I’d like to encourage all my readers to think about this. There is a lot of freedom in being able to take a printed pattern and view it not as something that has to be followed exactly, but more as a place to start something uniquely yours. BTW – if you have never read Elizabeth Zimmerman’s books – you are missing an absolutely fun and enlightening experience!

As I spend time knitting my baby blanket, I find myself marveling at how those two basic stitches – the Knit Stitch and the Purl Stitch – can be combined in endless ways to make up fascinating textures. Consider the sheer simplicity of these two stitches. They are just opposites of each other. Yet these two stitches are knitting up nicely into teddy bear squares surrounded by seed stitch borders. And this project is rather simple. Then consider an Aran sweater pattern as an example of a far more complex combination of textured patterns – but again, the textures are made by the way one combines the basic knit and purl stitches and applies techniques such as cabling. Thus, knitting is both simple and complex and filled with unlimited possibilities of variation and combinations. No wonder we knitters love to knit!

Master Knitter Level I – Swatches #1, #2, & #3Master Knitter Level I – Swatches #1, #2, & #3

I have completed the first three swatches for the TKGA Master Knitter Level I program. As I mentioned in an earlier post, I discovered an issue with tension that I did not realize I had. And over the last few weeks, I have done quite a bit of reading about tension and an equal amount of knitting, reknitting, and being much more aware of HOW I knit. This is one of the purposes of the Master Knitter program — it makes you think about your craft and helps you identify the bad habits you have developed over time.

I have decided to use this blog as I way for me to document the lessons learned as I proceed through the Master Knitter Level I program. Hopefully, others will find my notes and comments helpful and will also learn from them. So, here is the first of my “lessons learned”:

Swatch #1 — 2 X 2 Ribbing & Garter Stitch
Garter stitch (knit all rows) was fairly easy for me — the key is to maintain an even tension throughout knitting the rows.

Tension can be a real issue with 2 X 2 Ribbing, because most knitters tend to purl more loosely than they knit. [I do]. The result of this tendency is that your ribs are formed of uneven stitches and appear “wonky”. My first attempt at this swatch was definitely “wonky”. After much researching, knitting and reknitting, I determined that I was really out of practice purling because I had been knitting projects mostly “in the round” and this was part of my problem. So, I spent some time just purling and working on my tension — trying to get it more consistent. I eventually managed to obtain a fairly even tension with my ribs. From my reading, I think that the unevenness on the edges is normal and should be satisfactory.

Swatch # 2: 1 X 1 Ribbing and Stockinette Stitch
Swatch #2Tension was also an issue for me with the 1 X 1 Ribbing. With this ribbing, I found that my looser purl stitches really impacted the shape of the ribs. Again, I found that I really needed to practice purling and focus on keeping my tension even when doing the ribbing.

For the Stockinette Stitch, I was able to obtain the even fabric required — but only after I had worked on my purling. The evenness isn’t as noticeable on the right side — you need to look at the wrong side of the fabric and make certain that there isn’t a distinct difference in your rows between the knit rows and the purl rows. Along the way, I discovered that I knit fairly loosely and I had to go down one needle size to achieve a decent fabric.

If you are trying to correct uneven tension when ribbing, here are a couple of ways to do so:
1) Just try knitting with an even tension; 2) Give your yarn and extra tug when moving it to the front of the needle and before purling; 3) Try wrapping your yarn under your needle when purling — note, this makes the stitches sit on the needle with the back loop leaning forward — to avoid twisting the stitch you must knit through the back loop rather than the front when knitting; 4) Try purling using the Norwegian Purl method [link to video here].

Swatch # 3: Seed Stitch
Swatch #3
Swatch # 3 was a sample of Seed Stitch — which is K1, P1 across the row over an even number of stitches. The goal here is to produce a nice even fabric with no visible holes between the knit and purl stitches. This is another tension challenge. It took me three swatches to produce the swatch shown. I finally came to the conclusion that I was over-doing the tension, basically trying too hard — and once I relaxed a bit on this, I got a better result.

In summary, here’s what worked for me: 1) After practicing, I needed to relax a bit — I got to the point that I was pulling my purl stitches so tightly that I made my knitting even less consistent. 2) Remembering to do that little extra tug when putting the yarn in front to purl. 3) For the edges — giving the yarn an extra tug when knitting off the last stitch on the row, followed by giving an extra tug after knitting the first two stitches on the next row. (more…)