Lindy's Knits & Laces knitting,Knitting Techniques,Sweater Design Designing a Sweater without a Pattern

Designing a Sweater without a Pattern

In previous posts, I have discussed how to use Elizabeth Zimmerman’s Percentage System (EPS) to design and knit a sweater and how to modify a written pattern to adjust for changes in sizing and/or gauge. Today, I will briefly describe the process of designing a sweater without a written pattern. I learned this process in depth when I first knitted a sweater using my knitting machine. Knitting garments on a knitting machine requires extensive set-up and calculations before you can even begin to knit. Regardless of whether you are hand knitting or machine knitting – the process and calculations are the same.

As in the previous design techniques, you start with a good set of body measurements and a gauge swatch to determine your stitch and row gauge. You will also need to factor in the amount of ease you wish to have in your completed sweater.

Any sweater has several basic elements: The front & back, the sleeves and the neck. Sweaters come in two basic forms – the pullover and the cardigan. If you take a minute to think through all the sweaters you have seen, you will realize that all of them are some variation of these two basic forms. So, let’s start by breaking down the elements of a basic pullover sweater.

Elements of a Pullover Sweater:

  • The Front & Back – in a very basic design, the front and the back are the same up to the point where one shapes the neckline. The Front and Back make up the tube of fabric that goes around the entire body – thus, the back consists of one-half of the total number of stitches needed for the body/chest measurement and the front has the other half. In our basic design, the back/front is essentially a rectangle – and you need to determine the width and the length from your own measurements. If you plan to knit this sweater in the round, then you will calculate the total number of stitches based upon the body/chest measurement plus ease. [(BM + Ease) X SPI]. If you plan to knit this sweater in pieces and then sew the pieces together, you will calculate the number of stitches needed for the front/back by dividing the Body/chest measurement by two and then adding in Ease and multiplying by your stitch gauge. [((BM/2) + Ease) X SPI]. For a set-in sleeve, you will also need to calculate the shaping of the armhole. When knitting in the round, at the point you begin shaping the armholes, it is best to knit flat and knit the front and back separately.
  • The Neck – the most basic neck for a pullover sweater is a round or crew neck shape. In our basic sweater design – a portion of the stitches of the center back are used for the back of the neck, while in the front there is some shaping done to make the front of the neck slightly lower than the back. The stitches not used in the neck are used for the shoulders and form the shoulder seams of the sweater. It is best to use live stitches for necklines. This allows you the needed stretch for the fabric to go over the head of the wearer. One must also keep in mind that the average woman’s head has a circumference of 22 inches. Thus, there needs to sufficient width allocated to the neck to allow the head to pass through it.Back Neck – for the basic sweater pattern, the back does not have any shaping to it. It is simply divided into three sections: Left shoulder, Neck and right shoulder. The number of stitches assigned to the back neck stitches is somewhat proportional to the chest measurement. Generally, the wider the chest, the larger the neck circumference. In this basic sweater design, there should be an equal number of stitches allocated to the shoulders, with the remaining stitches placed on hold for the neck. You determine the number of back neck stitches by multiplying your stitch gauge by the width of the back neck. You then subtract the number of back stitches from the total number of stitches for the back at the shoulders – this will give you the number of stitches for the shoulders. This number needs to be divisible by 2, so you may need to take 1 stitch from your neck stitches to even it out.

    Front Neck – the shaping for the front neck begins below the last row of the shoulder. For women, the depth of the neckline starts 2.5 to 3 inches below the shoulder, for men, the depth is 3 inches to 3.5 inches and for children the depth is 1.5 to 2.5 inches. This depth is entirely a matter of preference. The front neck is shaped as a semi-circle by gradually eliminating stitches on either side of the center front neck stitches. Thus, the center front stitches are placed on hold and then decreases are done on either side of these stitches as you knit up to the shoulders. This shaping will occur concurrently with the armhole shaping

  • The Sleeves – the most common styles of sleeve in commercial sweaters are the drop-sleeve and the set-in sleeve. For this design, I will cover the set-in sleeve. A Set-in Sleeve joins the body of the sweater at the armhole and the top of the shoulder seam. Set-in sleeves require shaping at the top of the sleeve itself as well as corresponding shaping in the front and back. The shaping is made by a series of bind-offs, increases and/or decreases. To design your sleeve you must have your sleeve length, the width of the sleeve at the armhole, the width of the sleeve at the elbow and the width of the sleeve at the wrist. You also need the depth of the armhole. There are quite a few calculations required to be able to knit a properly fitting set-in sleeve. You begin by calculating the shaping of the sleeve from the wrist to the underarm and then calculate the shaping required to form the rounded sleeve cap. Shaping is achieved by a series of increases from the wrist to the underarm, followed by bind-offs and decreases to form the sleeve cap.

Now let’s look at a basic cardigan sweater.

Cardigans are most often knitted flat – either in separate pieces or in as a one wide piece on a long circular needle. They can be knitted in the round using a steek to separate the two fronts when finishing the sweater. Shaping for armholes and neckline are mirrored for the right and left fronts. In addition, there is a knitted band of fabric that overlaps at the center front – this band can be knitted concurrently with the front using a pattern stitch or can be added to the front by picking up stitches along the center front edge after the front has been knitted.

The calculations for this sweater are essentially the same as for our basic pullover – with the exception of the front. A cardigan sweater has two front pieces that meet and overlap in the center of the garment. This means that each front piece is one-half of the front piece of a pullover sweater, plus some added width for the overlapping parts(buttonbands or borders). In our basic sweater design, you simply add the desired width of the buttonband to each front piece. For example, the front on our pullover measures 40 inches. For our cardigan, each front piece would be half of that or 20 inches and the buttonband would be 2 inches wide: 20 + 2 = 22 inches. My Excel Spreadsheet includes a section on calculating the fronts for a cardigan.

I have created an Excel Spreadsheet for all the calculations required for a basic pullover with a set-in sleeve. Click here to download the spreadsheet: Sweater Calculator.

Using this calculator and your own gauge, you now have all the calculations required to knit your pullover sweater. You can knit this sweater from the top down or from the bottom up. The shaping for a top-down sweater is done in the reverse order of a bottom-down sweater.

Terms of Use: You may electronically copy and print to hard copy portions of the spreadsheet for the sole purpose of using materials it contains for informational and non-commercial, personal use only. Any other use of this spreadsheet — including any commercial use, reproduction for purposes other than described above, modification, distribution, republication, display, or performance — without the prior written permission of Lindy’s Knits & Laces is strictly prohibited.

Today I have briefly outlined the basics of designing your own sweater using two basic sweater designs. From these two basic designs, you can create a sweater according to your own measurements out of any weight yarn. I recommend you give it a try. Listed below are some references for your further exploration – I have only scratched the surface of this topic. Happy Knitting.

If you find this post and/or my spreadsheet helpful , please leave me a comment. Thanks!

For further exploration – check out these sources:

Maggie Righetti, Sweater Design in Plain English
Leslye Solomon, The Uncomplicated Knitting Machine
Deborah Newton, Designing Knitwear.
Barbara G. Walker,Knitting from the Top Down.
Vogue Knitting

1 thought on “Designing a Sweater without a Pattern”

  1. Dear Lindy,
    I am wanting to knit myself a basic cardigan using my own measurements and without a pattern. (My last effort was far too big!) I have found your instructions so helpful. One problem is that my hip measurement is larger than my bust i.e. I am pear-shaped! I am working on your excel calculator and I think this shows that I should use the stitches calculated from my hip measurements. I am hoping for better results this time!
    Many thanks,
    Audrey

Comments are closed.

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

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:

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

Acquiring Needles over TimeAcquiring Needles over Time

When I started knitting decades ago, the choices and types of knitting needles were limited. I started out using the Boye brand of aluminum straight single point needles in US size 10.5 – I think they were about 8 inches long. My next set of needles were US size 8 and were 14 inches in length. I continued acquiring single point aluminum needles – buying them one set at a time as I needed for the project I was working on. I still have most of those sets and I don’t use them much anymore.

I also acquired double point needles(dpns) as I learned to knit in the round or circular. These were purchased generally from big box type stores that carried knitting supplies. I have a mix of aluminum. bamboo, and birch needles. Again, I still have these needles but I rarely use them.

My first sets of circular needles were also purchased at big box stores and are aluminum or bamboo with thicker cables. I eventually found a local yarn shop in my area and this opened up a whole new avenue for buying knitting needles. The needles carried by the shop were of a much higher quality than what was available through the big box stores. My first purchases of fixed circular needles were Addi brand. Over time, I acquired a collection of these needles in various lengths. Again, I bought the size and length of needles as I needed them for projects.

I purchased my first set of interchangeable knitting needles about 25 years after I started knitting. I still use this set regularly but I also have acquired additional interchangeable needles and cables over time.

What I describe above is a process that I believe most knitters go through as they progress in the craft of knitting. You start out with what you are introduced to as a beginner and go from there. Today’s knitter has a much wider array of choices in knitting needles.

There are many different brands available as well as many different materials, not only aluminum and bamboo, but different types of woods, stainless steel, nickel, and acrylic. There are also many different options for where to buy knitting needles today. Knitters now have the option of buying knitting supplies online in addition to stores/shops in their area. It is wonderful to have so many different choices – but it can also be challenging for the new knitter.  In my next post, I will discuss tips for selecting needles that I hope will help you the next time you wish to buy a set of needles.

Summer (…into Fall) Knitting: Dishcloths #7– #9Summer (…into Fall) Knitting: Dishcloths #7– #9

Well, my Summer knitting project of a dozen dishcloths has now drifted into Fall. I completed Dishcloth #7 and #8 before Summer ended and then got busy with other projects and just left my needles and yarn waiting for me to come back and knit some more. So, I started Dishcloth # 9 on Sunday and finished it up today. Hopefully, I will finish the last three dishcloths before the end of the Fall season. Here are the completed projects:

Dishcloth #7 — Valentine Hearts
Dishcloth #7 - Valentine Hearts
Pattern from Leisure Arts “Knitting Kitchen Brights Dishcloths” brochure. Yarn: Peaches & Cream Cotton, color Teal. This is a reverse stockinette stitch pattern on a stockinette stitch background that resembles a cut-out of hearts that I made when I was a child. It’s an easy knit pattern over 20 rows.

Dishcloth #8 — Zigzag Eyelet
Zigzag Eyelet Dishcloth
Pattern from Leisure Arts “Knitting Kitchen Brights Dishcloths” brochure. Yarn: Lion Brand Kitchen Cotton, color Natural. Lovely little lace pattern done over a multiple of 11 stitches plus 2 and 12 rows.

Dishcloth #9 — Climbing Lattice
Dishcloth in Climbing Lattice pattern
Pattern from Leisure Arts “Knitting Kitchen Brights Dishcloths” brochure. Yarn: Sugar’n Cream, color Cool Breeze Ombre. This is an interesting lace pattern that combines left twists with a four stitch eyelet pattern. I was getting tired of solid color yarns, so I went with this ombre — I really like the way it knitted up.

Links to Dishcloths #1 through #6:
Dishcloths #1 — #3
Dishcloths #4 — #6

Link to “Kitchen Bright Dishcloths” from Leisure Arts (2004).