Category: Swatching

Helpful Swatch Part 5: Substituting One Yarn for AnotherHelpful Swatch Part 5: Substituting One Yarn for Another

August 31, 2020August 31, 2020 | LindyBeirLindyBeir | 0 Comment | 8:00 am

Many times a knitter will select a pattern to knit only to discover that the yarn used in the pattern is either not available or there isn’t a sufficient quantity available for purchase or it costs more than what the budget allows. So, that leads to finding a reasonable substitute to use. I have seen many forum posts in Ravelry where knitters have had difficulty making a proper substitution.

The first step in substituting one yarn for another is to look for a yarn of similar fiber composition that has approximately the same weight and recommended gauge as the yarn listed in the pattern. By this, I mean if the yarn used in the pattern is worsted weight (size 4), it’s best to find another worsted weight yarn to use as the substitute. If you are purchasing from a local yarn shop, the staff may help you find a substitute. If shopping online, Yarnsub.com is a helpful website that can be used to guide your initial search. Another resource is Ravelry – if the pattern is available in the Patterns database, you can look at others’ projects to see what yarns have been used. Regardless, once you pick your substitute yarn – you’ll need to swatch to find your gauge before you cast on and begin knitting the pattern.

Question: “I’m not getting the same gauge with my substituted yarn as the gauge stated in the pattern – what do I do now?

Here are some options to consider:

  1. Change needle size and reknit the swatch to see if you can match the gauge. If you are getting more stitches than the stated gauge – go up one or two needle sizes. If you are getting fewer stitches than the stated gauge – go down one or two needle sizes. If you succeed in matching gauge with the change in needles and you like the fabric you are producing, then simply follow your pattern and knit with the size needle that helps you get gauge.
  2. If you still can’t get gauge after changing needle sizes, but you like the fabric you are getting, calculate the number of stitches you need to cast-on to match your chest measurement and check the pattern to see if there is a size that uses the same number of stitches. You may still need to make adjustments in shaping if your row gauge is different from the pattern.
  3. Use the pattern as a guide only – use the schematic plus any adjustments you need to make and then determine the stitch counts and rows needed to make the garment with your own gauge. (A good reference for this is Knitting Pattern Essentials by Sally Melville)

Here’s the next issue for substituting one yarn for another: Does the substitute have the same weight and yardage as the original yarn? If it does – you are in luck and can simply buy the same amount of yarn as what is given in the pattern for the size of the garment you want to knit. (Remember to buy an extra one for swatching.) However, in most cases there is a difference in yardage and/or weight between the substitute and the original yarn – which leads to the question: “How much of my substitute yarn do I need? This brings us back to the basic math I covered in my previous post: “To determine the number of skeins, balls or hanks of yarn you need: Divide the number of yards by the number of yards in the skein. Or divide the total number of grams by the number of grams of the skein.  Remember that you will want one extra skein for swatching. “

Read MoreRead More

How to Knit a Helpful Swatch – Part 4 Swatching to Estimate Yardage NeededHow to Knit a Helpful Swatch – Part 4 Swatching to Estimate Yardage Needed

August 24, 2020August 24, 2020 | LindyBeirLindyBeir | 0 Comment | 8:00 am

I have covered the basics of how to make a Gauge Swatch and calculate your stitch and row gauge in my previous three posts. Today’s topic will cover some basic math to help you estimate the yardage that you need using your yarn, your needles, and your gauge to make a sweater.

Let’s say you want to make a sweater using yarn from your stash and you need to know if you have enough to make it. To make this estimate, you need the measurements for the sweater you want to make. If you are using a pattern, the finished measurements should be stated within the pattern – ideally on a schematic. Some patterns may only state the desired measurements within the text of the pattern and you may have to read through to find them.  If you are making the sweater without using a pattern – you would use the measurements of the individual who will be wearing the sweater.

The image below shows a schematic for the back of a sweater of a drop sleeve sweater. The back is 28 inches long from the hem to the neck and it is 20 inches wide. Both the front and the back of this type of sweater are essentially rectangles. 

Schematic of Back/Front of Sweater

The schematic for the sleeves of this sweater are shown below.

Schematic of Sleeve

At this point, you have the numbers you need to calculate the number of square inches of fabric that you need to make for this sweater. For the front and back, multiply the length by the width on the schematic and then multiply that number by 2. Using the numbers from my example above:

20 * 28 = 560     560*2 = 1120  square inches for front and back.

The sleeve is a trapezoid shape. The formula for the area of a trapezoid is:

[(b1+b2) * h] / 2

Where b1 is the width at the bottom of the sleeve(8”) and b2 is the width at the top of the sleeve(15”) and h is the length of the sleeve(18”). Using the numbers from the sleeve schematic, the area for one sleeve is 207 square inches. Since you need two sleeves, you then need to multiply the area of the sleeve by two. (414 square inches)

Now, here’s a short cut – if you place your sleeves next to each other so that the tops of the sleeves are parallel – you have a parallelogram. To get the area of this parallelogram you simply multiple the width(15”+ 8” = 23”) by the length(18”). Try it – you’ll get the same number as above.

Add the square inches for the front and back to the square inches for the sleeves and you have the total number of square inches of fabric in the sweater. Now that you know the total number of square inches of fabric you need, you will need to use the yardage and weight information of the yarn you want to use to estimate how many skeins or balls of yarn your sweater requires. The yardage per weight of the yarn will be found on the yarn label – see image below:

You will use the yards per gram value in the estimate for total yardage. Now you need to knit a swatch. The swatch should be in the same stitch pattern that you plan to use for the body of your sweater. This swatch does not need to be the same size as your gauge swatch, but it should be wide enough and long enough to get an accurate weight, length and width measurement.  After you knit this swatch, you will measure its weight using a scale that measures to the nearest tenth (0.1) of a gram. Next measure the length and width of the swatch and multiply these values together. This gives you the number of square inches in your swatch. Now divide the number of grams by the number of square inches.(Do not round). You now know what 1 square inch of your yarn weighs. This is the number you need to calculate how much yardage you need for your sweater.

Example: My swatch measures 3.5 inches by 4.5 inches, which gives me 15.75 square inches. The swatch weighs 9.6 g. Dividing 9.6 by 15.76 gives me 0.622 g/square inch.

Here’s the final set of calculations:

Take the total number of square inches of fabric and multiply it by the number of grams per square inch. This gives you the total weight in grams for your sweater.

Total Number of Square Inches * grams/inch2  = Total grams of fabric

Total Grams/Square Inches = (1120 + 414) * 0.622 = 954.148 g

Now take the yards per gram value from the yarn label. (For example 218 yds/100grams). Divide the yds by the grams to get the number of yards in 1 gram of yarn.  (For example: 218yards/100grams = 2.18 yards per gram.)  Multiply the total number of grams of fabric by the number of yards per gram to get the total yardage for the sweater. Using the numbers from the examples above:

Yards per gram = 2.18 yds/g

Total Yards of Yarn = 954.148 * 2.18 = 2080 yds

To determine the number of skeins, balls or hanks of yarn you need: Divide the number of yards by the number of yards in the skein. Or divide the total number of grams by the number of grams of the skein.  Remember that you will want one extra skein for swatching. (In my example, I would need 9.5 skeins, so I would want 11 skeins with one extra for swatching)

What to do if you don’t have the yarn label

To determine how many yards of yarn you have when you do not have the yarn label or any information, simply measure out 10 yards of your yarn and weigh it. Divide the weight by 10 and you have the weight for 1 yard of yarn. Now weigh the skeins/hanks of yarn and multiply by the weight of 1 yard.  This will give you the number of yards for each skein/hank.

[Total_Soft_Poll id=”2″]

Read MoreRead More

How to Knit a Helpful Swatch – Part 3 Swatching in the RoundHow to Knit a Helpful Swatch – Part 3 Swatching in the Round

August 17, 2020August 17, 2020 | LindyBeirLindyBeir | 0 Comment | 8:00 am

It took me a good bit of time to decide if I thought it was necessary to knit swatches in the round if I was knitting an item in the round rather than flat. The practice of knitting sweaters flat in pieces that are sewn together versus knitting sweaters in the round is, in itself, a whole topic with proponents for each practice.  I may take this topic up at a later time, but for now I will focus on knitting a swatch in the round.

First, there are many knitters and designers who only use gauge swatches knit flat to determine their stitch gauge even if the pattern is knit in the round, and second,  most patterns do not state how the gauge swatch was done. All you see in the pattern is the gauge statement.

Do you know if your gauge is the same if you knit in the round as when you knit flat? There’s a good chance that it’s not. As I’ve said before, gauge is a measure of how an individual knitter knits.

Think about how you knit when you knit in the round. One of the biggest differences is that you only knit on the right side of the fabric when you knit in the round. Using stockinette stitch as an example: When you knit flat, you knit one row (right side) and then turn your work and purl the next (wrong side). When you knit in the round, you join the stitches to make a circle and then knit every round.

Now, if you are one of the many knitters whose purls are looser than their knits, there is going to be a difference in tension between something you knit flat and something you knit in the round. Plus, you may modify your technique for knitting when knitting in round from when you knit flat. If you use straight needles when knitting flat, then switch to using circular needles or double point needles (dpns) to knit circular – your gauge may be significantly different. This is why I have come to the conclusion that it is good practice to swatch in the round when planning a project that will be knit in the round.

So how does one knit a swatch in the round? The first method is to cast on a enough stitches to give you a knitted tube that will be at least 4+ inches when laid flat. This could be the start of a sock or a hat. (Elizabeth Zimmerman said that “a hat makes a good swatch”.) Once you have a tube knitted of sufficient length for a good  measurement, you treat this swatch the same way you would if your swatch that was knitted flat – i.e. measure, block, re-measure.

The second method goes by a couple of different names: “Speed Swatch” and “Circular Swatch with Floats” are two that I have found in my research. In this method, you use a circular needle and cast on the same number of stitches you would if you were knitting flat. But instead of knitting a row and then turning the swatch and knitting back to the end of the row, you slide your stitches to the needle on the opposite end and strand the working yarn loosely across the back and start knitting the next row. You keep repeating this process until you have a long enough swatch for good measurements. See pictures below:

  • Front of Swatch ITR — Knit with US 8 and Us 7 Needles
  • Back of Swatch ITR

Once you have the swatch completed, you treat it the same way as any swatch – measure unblocked, block, re-measure. A note about measuring this swatch: Some sources suggest that it is easier to measure this swatch after cutting the loose strands so that the swatch will lay flat. Others simply say to measure the swatch by laying it as flat as you can. Logically, you are not going to want to cut the strands if you plan to reuse the yarn in the swatch. I’ve tried both ways and did not find a significant difference in measurements.  Here are pictures of the swatch above after I blocked it and cut the floats to take the measurements:

So if you plan to knit a sweater in the round, please do your swatch in the round.

If you would like to see a video on this technique, here are three helpful ones:

Nancy Wynn,  “How to do a Circular Gauge – Speed Method”: https://youtu.be/1W9XYgd3s7I

HowToCast: “How to Knit a Circular Gauge Swatch”:  https://youtu.be/E1z2pbRmddY

11 Gauge Swatch Secrets PLUS How to Swatch in the Round | Off Our Needles S3E1: https://youtu.be/tv7uy0HetrI

Read MoreRead More

How to Knit a Helpful Swatch – Part 2 Stitch PatternsHow to Knit a Helpful Swatch – Part 2 Stitch Patterns

August 10, 2020August 10, 2020 | LindyBeirLindyBeir | 0 Comment | 8:00 am

In my previous post, I discussed how to make a preliminary swatch to select the size needle that gives you a fabric that you like and then how to knit a gauge swatch. The gauge swatch is measured to give you your stitch gauge (stiches per inch) and your row gauge (rows per inch).

At this point, you might think you are ready to cast on and begin knitting your sweater – BUT….

Are you planning on using some type of ribbing for the bottom, cuffs and neckline of the garment? Are you planning on using a certain textured stitch pattern, a lace pattern or cables in your sweater? Will you be combining two or more stitch patterns in the body of the sweater? If the answer to any of these questions is “yes”, then you need to do more swatching.

Swatches with Borders: Have you ever knit something with a definite edge made by knitting either garter stitch or seed stitch and then found that the edges curl? The reason this happens is usually due to a difference in gauge between the stitch pattern used for the border and the stitch pattern used for the body. Thus, if you are knitting piece with a border that is different than the body of the piece, knitting a swatch with the borders on it provides you with an opportunity to make adjustments to minimize or eliminate the problem.  Suzanne Bryan has a nice video on this that you may find helpful, here’s the link:

Short Rows in Garter or Seed Stitch Border

Note: I don’t recommend using garter stitch borders on gauge swatches even though others do. The border tends to distort the swatch and may affect the accuracy of your measurements.

Swatches of Ribbing: Ribbing by nature tends to “pull in”. Which means that 30 stitches of ribbing will have a smaller width than 30 stitches of stockinette stitch. How much of a difference can be quite significant and affect the way the garment fits around the hips and neck as well as around the wrists on a long sleeve. Also, some knitters find that their ribbing stitches appear larger than their stockinette stitches due to changes in tension. One solution for this is to use a smaller needle when ribbing – but if you do that you may need to have more stitches to get the right width of fabric for a proper fit. Knitting a swatch with your selected ribbing pattern followed by a transition to the stitch being used for the body of the sweater will provide you with the information you need to decide what you want to do. You might want to knit separate swatches with different ribbing patterns to select which ribbing you prefer to use in your garment. (You don’t have to use the same ribbing that the designer did for the pattern if you don’t want to…just saying.)

Swatches of Stitch Patterns:

In this post, stitch patterns refer to textured pattern stitches, lace patterns, cable patterns, etc. Basically any grouping of stitches that combine to make a pattern from the variations in stitches used.

I think making a swatch of the stitch patterns used in a written pattern provides a great deal of useful information about how the finished garment will look and feel – and fit! It’s also good practice before doing it as part of your finished item.

Keep in mind that most written patterns only give gauge in stockinette stitch and while that tells you what the designer’s gauge is – it does not tell you how the gauge changes in the stitch pattern(s) used in knitting the garment. If you find a written pattern that states the gauge of the stitch pattern – great. But does your gauge match that? Swatching is the only way you will know.

If you are only using one stitch pattern, then knitting a swatch with two or more pattern repeats will help you figure out how the pattern affects the width and length of the garment and what adjustment you might need to make to obtain the correct size of garment you want. If you combine it with your ribbing, you will see how the ribbing affects the transition to the main fabric of the garment.

If you are combining more than one stitch pattern within the main fabric of a garment, I recommend doing individual swatches for each stitch pattern to use as a gauge swatches.

  • Crest of Wave Lace Pattern
  • Garter Stitch
  • Embossed Moss Stitch Ribbing

Then to see what happens when the stitch patterns are combined,  you should do a swatch large enough to include all of the stitch patterns used in the order you plan to use them. This may end up being a very large swatch – even enough stitches for the back of your garment. This type of swatch will provide you with a lot of helpful information and give you insight into what adjustments you might need to make for a great fitting garment.  More on this in a later post.

Read MoreRead More