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Yarns Sorted by Weight
Well, every time we think there's a correct way to sort yarns into groups that can be used one for another, we hit a snag. The truth is that there is so much variation in yarns that it's impossible to have absolute rules on substitutions.

The Craft Yarn Council of America (CYCA) developed those handy little skeins with the numbers on them, 0 through 6, but still that isn't a complete answer for yarn substitution. There's a lot of variation among all those "4" yarns. The plain truth is you have to look at all these things, and use the infallible computer we all have (your brain!) to figure it out. Start with common sense--narrow things down first by general terms, then continue from there. You'll notice that the #3,4,&5 groups are bigger, and have more variation within them, than the thinner yarns.

What are the things that you should consider when substituting yarns? Gauge of course, but also the fiber used, smoothness, regular or irregular spin, indoor or outdoor use, and the draping of it (limp to stiff). And how do you tell these things? Sometimes it's really tough--even the color of the dye can make a difference in how a yarn works up.

  • Big Ball of Cloud Garments in Cloud Garments in Cloud Garments in Cloud

    Cloud Bulky Wool Blend Yarn by Lang

    Cloudby LangThis so soft bulky yarn will wrap you in gorgeous color. Superwash wool makes it easy care, but nice and warm. You let yourself float on a soft cloud and look at the most beautiful rainbow. The colors mix harmoniously and add lightness to...

    MSRP: $30.00
    $29.00
  • Ball of Cashmere Dreams Garment in Cashmere Dreams Garment in Cashmere Dreams Garment in Cashmere Dreams

    Cashmere Dreams Yarn by Lang

    Cashmere Dreamsby LangThe name says it all - a dream made of cashmere and silk! Delicacy, lightness, and a halo that obscures hard lines let you float away into higher spheres. This yarn doesn't need many words - just knit it! You think of luxury, but...

    MSRP: $37.00
    $34.95
  • British Blue Fingering Weight Wool by Erika Knight British Blue Fingering Weight Wool by Erika Knight British Blue Fingering Weight Wool by Erika Knight

    British Blue Fingering Weight Wool by Erika Knight

    British Blue Fingering Weight Wool by Erika KnightBritish Blue Wool is made from 100% Bluefaced Leicester fleece - supremely soft, subtly sheeny, this is Britain's most luxurious fiber. It is the ultimate natural fiber, perfect for projects for either...

    MSRP: $12.00
    $11.50
  • ball of Snowflake Snowflake Cotton-Alpaca Blend Yarn Snowflake Cotton-Alpaca Blend Yarn Snowflake Cotton-Alpaca Blend Yarn Snowflake Cotton-Alpaca Blend Yarn

    Snowflake Cotton-Alpaca Blend Yarn

    SnowflakeAlpaca and Cotton Blend by Lang A beautiful print on a so so soft and light blended yarn. It is so easy to fall in love with this yarn. It's like falling into fresh powder snow and drawing snow angels. LANGYARNS SNOWFLAKE keeps you cozy and warm...

    MSRP: $18.00
    $17.95
  • Ball of Linello Linello sweater Linello shawl Linello top

    Linello Multi-color Linen Blend Yarn by Lang

    Linello by Lang Linello is a beautiful stranded yarn made of linen, cotton, and a small percentage of natural fiber viscose. The composition is not only breath-taking but it also creates a breathable fabric, perfect for warm summer days and balmy...

    MSRP: $21.00
    $19.95
  • Ball of Liza Garment made of Liza Garment made of Liza Garment made of Liza

    Liza Multi-fiber Yarn by Lang

    Liza by Lang Liza is a lovely yarn that is suitable for any project. This yarn may look simple, but appearances can be deceiving. It is a graceful and soft yarn made of bamboo, silk and wool. Liza is durable, and the silk creates soft shades of color...

    $13.95
  • Ball of Lotus

    Lotus by Lang

    Lotus by Lang An exceptional and unusual spring and summer yarn from Lang, made of 40% cashmere and 60% cotton. With this yarn you will create the most beautiful creations, whether you are a beginner or a more advanced knitter. At first sight it may look...

    $15.95
  • Sale
    Ball of Aymara Garment in Aymara Garment in Aymara Garment in Aymara

    Aymara Alpaca Blend Yarn by Lang

    Aymaraby LangYou have got to get Aymara into your hands. Period. Full Stop. I LOVE this yarn, but gosh I hate trying to describe it, because it is so, so much more than words and pictures can convey. It is so much more than its parts. Simply out of this...

    Was: $12.95
    Now: $8.95
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    Ball of urania Garment made of Urania Garment made of Urania Garment made of Urania

    Urania by Lang

    Uraniaby LangURANIA - the perfect yarn for knitting. Urania, which means heavenly, lives up to its name. The yarn consists of a mixture of extra fine merino wool and lyocell. A beautiful sheen plus sumptuous softness makes Urania perfect for any DK...

    Was: $11.95
    Now: $9.00
  • Sale
    skein of Soho

    Soho Chunky Wool Blend Yarn by Lang

    SohoSuperwash Wool Blend by LangWOW!! Soho is a fantastic explosion of colors, applied in every technique imaginable. And it comes in a huge 100g pull skein -- it sure won't get lost in your stash. Of course we think you'll want to get this yarn on your...

    MSRP: $24.00
    Was: $23.95
    Now: $18.00
  • Ball of Hopi Garment made of Hope Yarn Garment made of Hope Yarn Garment made of Hope Yarn

    WoolAddicts Hope Pure Wool Bulky Yarn

    WoolAddicts Hopeby LangHope: the yarn you hoped for and dreamed of. Hope is made of 100% strong wool fibers that don't felt. Wear Hope on long winter days. It will suit you well. See great ideas for this yarn in the WoolAddicts 5 book--so classic, but...

    $19.50 - $19.95
  • Ball of Wool Addicts Glory Garment of Wool Addicts Glory Garment of Wool Addicts Glory Garment of Wool Addicts Glory

    WoolAddicts Glory Superwash Merino by Lang

    WoolAddicts Gloryby LangThis yarn is really truly glorious, and called Glory because of it! Bulky knits work up super quick into soft snuggly real wool goodness.Glory: The road to a successful knitting story starts here. Keep this warm, soft 100% Merino...

    MSRP: $15.00
    $13.50
  • Cones of Frangipani Gansey sweaters in Frangipani Gansey sweaters in Frangipani Gansey sweaters in Frangipani

    Frangipani 100% Wool Guernsey Yarn

    Frangipani Authentic Guernsey YarnBig project-sized 500g cones in classic and modern shadesPure British wool beginning with the sheep and carefully prepared at every step on through to you. This special 5-ply wool is spun and dyed in Yorkshire in the...

    MSRP: $66.00
    $61.95
  • ball of Ravello

    Ravello Cashmere and Cotton Blend Yarn

    Ravelloby UniversalThis beautiful Italian yarn is a blend of cotton, extra-fine merino, and cashmere. The cashmere is recycled from sweaters to find a second life as an eco-friendly addition to this luxurious yarn. This finely balanced blend provides...

    MSRP: $19.00
    $17.50
  • Skein of Wool Pop Garment made in Wool Pop Garment made in Wool Pop Garment made in Wool Pop

    Wool Pop Bamboo Blend Yarn

    Wool Popby UniversalAnother great bamboo blend yarn from Universal! Wool Pop has a slight sheen and a smooth, soft hand. The way the bamboo and wool take the dye differently gives this yarn a heathery look for textural interest, but is easy to knit. Big...

    MSRP: $15.00
    $13.95
  • Sale
    Wendy Pure Wool Aran 200g Wendy Pure Wool Aran 200g Wendy Pure Wool Aran 200g

    Wendy Pure Wool Aran 200g

    Wendy Pure Wool Aran YarnLast Chance:  only 1 color left  PheasantPure Wool Aran remains 100% Pure British Wool but this quality product is now offered in a very versatile 200g ball with a bold new ball band and sumptuous new shade range of...

    Was: $14.95
    Now: $9.00
  • Ball of Twin Socks Example of Twin Socks Example of Twin Socks Example of Twin Socks

    Twin Soxx 4-ply sock yarn by Lang

    Twin Soxx 4-ply sock yarn by LangThis clever yarn produces twin socks with two identical colour repeats in one ball. Begin the first sock with the yarn from the inside of the ball. After about 200m (220yds) you will find a piece of unprinted yarn. Cut...

    $17.95
  • Super Soxx 4-ply sock yarn by Lang

    Super Soxx 4-ply sock yarn by Lang

    Super Soxx Color 4-ply sock yarn by LangAnother fabulous self patterning sock yarn with unusual designs, and of course the gorgeous Lang colors. Lang's quality control is second-to-none; that's why Lang is the oldest quality yarn brand in Europe. You...

    $17.95
  • Sale
    Ball of Baby Cotton

    Peter Pan Baby Cotton

    Peter Pan Baby CottonBaby Cotton DK yarn is a classic addition to the Ramsden yarn line-up. The high quality cotton blend is very soft, durable, and machine washable while being hypo allergenic for baby’s delicate skin. The 100g pull ball features...

    MSRP: $7.50
    Was: $6.95
    Now: $4.95
  • Hanks of British Blue 100

    British Blue Wool 100g hanks by Erika Knight

    British Blue 100g by Erika Knight British Blue Wool is made from 100% Bluefaced Leicester fleece - supremely soft, subtly sheeny, this is Britain's most luxurious fiber. It is the ultimate natural fiber, perfect for projects for either baby or...

    MSRP: $22.95
    $21.95
  • Skein of Mayu Lace

    Mayu Lace Luxury Blend yarn by Amano

    Mayu Lace Luxury Blend YarnMayu Lace is a unique blend of Royal Alpaca, Cashmere and Mulberry Silk. It has been artisanally dip-dyed to give a beautiful iridescent effect, which imitates light on water and the softness of Andean light on the mountains...

    MSRP: $29.95
    $26.95
  • Ball of Viola Garment made with Viola Garment made with Viola Garment made with Viola

    Viola Cotton-Alpaca blend yarn by Lang

    Viola by Lang Fluffy, soft and extremely light. LANGYARNS ‘VIOLA‘ is appealing, with complex color variations. A dream for creative fiber artists to make knits of two-dimensional character, but with a delicate drape and flattering look. 50g...

    MSRP: $14.00
    $13.95
  • Sale
    Ball of Wool Addicts Faith Garment of Wool Addicts Faith Garment of Wool Addicts Faith Garment of Wool Addicts Faith

    Wool Addicts Faith wool blend yarn by Lang

    Wool Addicts Faith wool blend yarnby LangThis yarn was designed to have Faith in all crafty adventures! There's lots of merino to spark the creative light in you. A lightly felted single that will resist pilling, with Lang's signature depth of color...

    MSRP: $15.95
    Was: $15.95
    Now: $9.95
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    Ball of Respect yarn Garment from Respect Yarn Garment from Respect Yarn Garment from Respect Yarn

    WoolAddicts Respect Wool & Alpaca Blend Yarn

    WoolAddicts Respectby LangRespect is a beautiful chainette spun blend of wool, alpaca, and nylon. The subtle variations in the dye result of the fibers results in a heathery depth of color that is just stunning. Wear your own statements -- create...

    Was: $12.95
    Now: $9.50
  • Ball of Lyonel Garment in Lyonel Garment in Lyonel

    Lyonel Wool Blend yarn from Lang

    Lyonel by Lang Color, color, color. Lyonel has its very own intensity, which goes beyond the existing colors on textiles. The carefully balanced colors are blurred, with short repeats to avoid pooling. The bright bits of color remind us of flickering...

    $18.95
  • ball of Soft cotton Garments made with Soft Cotton Garments made with Soft Cotton Garments made with Soft Cotton Garments made with Soft Cotton

    Soft Cotton by Lang

    Soft Cottonby LangThe name is the thing. This pure cotton yarn consists of soft cotton fibers and is plied double. With this textile construction it is rounded, voluminous and comparatively robust. The impression is warm and soft, and yet it is made from...

    $8.95
  • Ball of Sunshine

    WoolAddicts Sunshine Pure Cotton Yarn

    WoolAddicts Sunshine Pure Cotton Yarnby LangPure 100% mercerized organic cotton worked as a chain. It’s shiny, strong and with a clear stitch definition, perfect for all your summer projects! 50g ball is about 104 yards (95m) 18 st & 24 rows...

    $11.95
  • Ball of Happiness

    WoolAddicts Happiness Soft Cotton Blend Yarn

    WoolAddicts Happiness Soft Cotton Blend Yarnby LangMarvelously soft cotton is a great reason to be happy, yes? When the sun goes down – stitches made of HAPPINESS calm your soul. Super-soft, high-quality pima cotton gives this yarn its unique soft...

    MSRP: $15.00
    $13.95
  • Flax Lace Fibra Natura Lace-weight Linen

    Flax Lace Fibra Natura Lace-weight Linen

    Flax Lace fine lace- weight linenby Fibra Natura Flax Lace is a 100% linen yarn, available in a wide range of solid shades. Flax blooms and softens beautifully with each trip through the washing machine. Linen wears very well, but it needs machine...

    MSRP: $14.00
    $13.49
  • Cashmerino for Babies and More by Lang Cashmerino for Babies and More by Lang Cashmerino for Babies and More by Lang Cashmerino for Babies and More by Lang

    Cashmerino for Babies and More by Lang

    Cashmerinofor Babies and Moreby LangWhile this wonderful wool blend is certainly baby soft and machine washable, personally I would put it in the "More" category because this is a yarn I would happily use for myself! So soft, and simply perfect for any...

    MSRP: $11.95
    $11.50
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    Ball of Marlene Garment in Marlene Garment in Marlene Garment in Marlene

    Marlene Cotton Blend Yarn by Lang

    Marleneby LangMarlene is a new look yarn that produces a translucent mesh background with ovals of shine. The fiber blend of finest cotton and nylon gives a silky, shiny, sophisticated fabric that will be a great addition to your wardrobe. Easy to knit...

    MSRP: $10.00
    Was: $9.95
    Now: $6.00
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    Ball of Wacki Sacki

    Wacki Saki Self-patterning Sock Yarn

    Wacki SakiFair Isle patterning for socks is back! Wacki Saki is a soft sock-weight yarn in a big ball of fun! Smooth bamboo gives this yarn the perfect feel for socks, shawls, baby garments, or just about anything. 100g ball is about 462 yards 50%...

    MSRP: $18.00
    Was: $16.50
    Now: $14.00
  • Skein  of Wildwool Garment in Wildwool Garment in Wildwool Garment in Wildwool

    Wild Wool by Erika Knight

    Wild Wool by Erika Knight Wild Wool is a sustainable blend of soft wool and natural nettle. Spun from the fiber found inside the stem of the plant, nettle has been used for 2000 years for its strength and durability as a textile. Nettle is grown...

    MSRP: $21.00
    $18.95
  • Ball of Wool Addicts Earth Garment of Wool Addicts Earth Garment of Wool Addicts Earth Garment of Wool Addicts Earth

    WoolAddicts Earth Alpaca-Merino Blend yarn

    WoolAddicts Earthby LangEarth is solid and reliable, like its name. The alpaca and merino fibers are blended to produce a very even and soft plied yarn that is a joy to work with. 50g ball is about 71 yards (65m) 12 st & 18 rows on US 9-10 needles...

    MSRP: $10.95
    $9.95
  • Sale
    Ball of Water by Wool Addicts Garment made with Water yarn Garment made with Water yarn Garment made with Water yarn

    WoolAddicts Water

    WoolAddicts Waterby LangBeautiful, soft baby alpaca is the fiber used for this unusual yarn. The crimped construction produces a light and airy yarn without being overly fuzzy. You will be reminded of Water by the little ripples made by the crimping...

    MSRP: $17.95
    Was: $14.95
    Now: $12.95
  • WoolAddicts Air Extrafine Merino by Lang

    WoolAddicts Air Extrafine Merino by Lang

    WoolAddicts Airby LangThis yarn is called Air because the colored merino fibers are air-spun around a small core of nylon that is either light or dark depending on the color. The result is a heathery, foamy look in vibrant colors. 50g ball is about 137...

    MSRP: $14.00
    $12.95