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Yarn by Weight

Shop Yarn by Weight: Find the Perfect Thickness for Any Project

Achieving the correct gauge starts with choosing the right yarn by weight. Whether you are following a pattern that calls for delicate lace or a trendy, oversized chunky knit, our collection makes it simple to filter over 1,000 options to find exactly what you need. From "Category 0" threads to "Category 7" jumbo roving, we carry all types of yarn weight to ensure your finished project has the perfect drape, warmth, and stitch definition. Use our weight filters below to explore your favorite fibers in the specific thickness your pattern requires.

Lace: > 8 sts or > 8 sc  = 1" | Fingering: 7–8 sts or 5.25–8 sc = 1" | Sport: 6–6.75 sts or 4–5 sc = 1" | DK: 5.25–6 sts or 3–4.25 sc = 1" | Worsted: 4–5 sts or 2.75–3.5 sc = 1" | Heavy Worsted/Aran: 4 sts or 2.75–3.5 sc = 1" | Bulky: 3–3.75 sts or 2–2.75 sc = 1" | Super Bulky: < 2.75 sts or 1.75–2.25 sc = 1"

Please note that Novelty yarns vary, so be sure to check the yarn specifications for your project. 

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Valley Yarns Northfield Yarn - Merino Wool DK 19 options
Valley Yarns Northfield Yarn - Merino Wool DK

70% Merino Wool 20% Alpaca 10% Silk, 124yds (113m)/50g (1.76oz), DK | Light Worsted

$8.49
Valley Yarns Amherst Yarn - Merino Wool Worsted 21 options
Valley Yarns Amherst Yarn - Merino Wool Worsted

100% Merino Wool, 109yds (100m)/50g (1.76oz), Worsted

$6.75
SALE Plymouth Yarn Encore Tweed Yarn - Acrylic Worsted 27 options
Plymouth Yarn Encore Tweed Yarn - Acrylic Worsted

75% Acrylic 22% Wool 3% Rayon, 199yds (182m)/100g (3.53oz), Worsted

$8.00
$10.00
Cascade Yarns 220 Superwash Wave Yarn - Wool Worsted 34 options
Cascade Yarns 220 Superwash Wave Yarn - Wool Worsted

100% Wool, 220yds (201m)/100g (3.53oz), Worsted

$15.00
Cascade Yarns 220 Superwash Aran Yarn - Merino Aran 66 options
Cascade Yarns 220 Superwash Aran Yarn - Merino Aran

100% Merino Wool, 150yds (137m)/100g (3.53oz), Aran

$13.60
Valley Yarns Valley Superwash Bulky Yarn 30 options
Valley Yarns Valley Superwash Bulky Yarn

100% Merino Wool, 109yds (100m)/100g (3.53oz), Bulky

$13.99
SALE Tahki Yarns Tandem Yarn - Cotton Worsted 20 options
Tahki Yarns Tandem Yarn - Cotton Worsted

28% Cotton 28% Viscose 28% Nylon 16% Acrylic, 107yds (98m)/50g (1.76oz), Worsted

$6.74
$8.99
SALE Plymouth Yarn Dream DK Yarn - Acrylic DK 82 options
Plymouth Yarn Dream DK Yarn - Acrylic DK

50% Acrylic 50% Nylon, 174yds (159m)/50g (1.76oz), DK | Light Worsted

$4.49
$5.99
Tahki Yarns Donegal Tweed Fine Yarn - Wool 4 Ply 24 options
Tahki Yarns Donegal Tweed Fine Yarn - Wool 4 Ply

70% Wool 30% Mohair, 218yds (199m)/50g (1.76oz), Fingering

$8.49
Paintbox Yarns Simply DK Yarn - Acrylic DK 85 options
Paintbox Yarns Simply DK Yarn - Acrylic DK

100% Acrylic, 302yds (276m)/100g (3.53oz), DK | Light Worsted

$4.50
Plymouth Yarn Encore Mega Yarn - Acrylic Super Chunky 35 options
Plymouth Yarn Encore Mega Yarn - Acrylic Super Chunky

75% Acrylic 25% Wool, 63yds (58m)/100g (3.53oz), Super Bulky

$8.50
SALE Berroco Comfort Sock Yarn - Nylon 3 Ply 25 options
Berroco Comfort Sock Yarn - Nylon 3 Ply

50% Nylon 50% Acrylic, 451yds (412m)/100g (3.53oz), Light Fingering

$4.75 - $9.50
$9.50
SALE Universal Yarn Bamboo Pop Sock Yarn - Bamboo 4 Ply 32 options
Universal Yarn Bamboo Pop Sock Yarn - Bamboo 4 Ply

55% Bamboo 37% Cotton 8% Other, 492yds (450m)/100g (3.53oz), Fingering

$9.60
$12.00
Cascade Yarns Pacific Yarn - Acrylic Aran 112 options
Cascade Yarns Pacific Yarn - Acrylic Aran

60% Acrylic 40% Merino Wool, 213yds (195m)/100g (3.53oz), Aran

$8.25
Koigu KPPPM Yarn - Merino Wool 4 Ply 62 options
Koigu KPPPM Yarn - Merino Wool 4 Ply

100% Merino Wool, 175yds (160m)/50g (1.76oz), Fingering

$16.50
SALE Sirdar Snuggly DK Yarn - Nylon DK 110 options
Sirdar Snuggly DK Yarn - Nylon DK

55% Nylon 45% Acrylic, 180yds (165m)/50g (1.76oz), DK | Light Worsted

$4.88
$6.50
Noro Kureyon Yarn - Wool Aran 98 options
Noro Kureyon Yarn - Wool Aran

100% Wool, 109yds (100m)/50g (1.76oz), Aran

$11.75
SALE Berroco Modern Cotton Yarn - Cotton Worsted 94 options
Berroco Modern Cotton Yarn - Cotton Worsted

60% Cotton 40% Rayon, 209yds (191m)/100g (3.53oz), Worsted

$9.60
$12.00
Valley Yarns Berkshire Yarn - Wool Worsted 24 options
Valley Yarns Berkshire Yarn - Wool Worsted

85% Wool 15% Alpaca, 141yds (129m)/100g (3.53oz), Worsted

$9.99
Debbie Bliss Cashmerino Aran Yarn - Merino Wool Aran 66 options
Debbie Bliss Cashmerino Aran Yarn - Merino Wool Aran

55% Merino Wool 33% Acrylic 12% Cashmere, 98yds (90m)/50g (1.76oz), Aran

$11.00
Valley Yarns 2/10 Merino Tencel (Colrain Lace) Yarn - Merino Wool Lace 21 options
Valley Yarns 2/10 Merino Tencel (Colrain Lace) Yarn - Merino Wool Lace

50% Merino Wool 50% Lyocell, 1540yds (1408m)/249g (8.78oz), Lace | 2 Ply

$31.49
SALE Valley Yarns Becket Yarn - Alpaca Worsted 19 options
Valley Yarns Becket Yarn - Alpaca Worsted

50% Alpaca 50% Wool, 141yds (129m)/100g (3.53oz), Worsted

$9.59
$11.99
Valley Yarns Hampden Yarn - Baby Alpaca DK 14 options
Valley Yarns Hampden Yarn - Baby Alpaca DK

50% Baby Alpaca 35% Merino Wool 15% Silk, 95yds (87m)/50g (1.76oz), DK | Light Worsted

$9.99
SALE Scheepjes Stone Washed Yarn - Cotton Sport 35 options
Scheepjes Stone Washed Yarn - Cotton Sport

78% Cotton 22% Acrylic, 142yds (130m)/50g (1.76oz), Sport

$4.50
$6.00
SALE Berroco Vintage Baby Yarn - Acrylic DK 35 options
Berroco Vintage Baby Yarn - Acrylic DK

52% Acrylic 40% Wool 8% Nylon, 145yds (133m)/50g (1.76oz), DK | Light Worsted

$4.40
$5.50
Berroco Ultra Alpaca Chunky Yarn - Alpaca Chunky 37 options
Berroco Ultra Alpaca Chunky Yarn - Alpaca Chunky

50% Alpaca 50% Wool, 131yds (120m)/100g (3.53oz), Bulky

$16.50
Malabrigo Worsted Yarn - Merino Worsted 155 options
Malabrigo Worsted Yarn - Merino Worsted

100% Merino Wool, 210yds (192m)/100g (3.53oz), Aran

$14.80
SALE Noro Silk Garden Yarn - Silk Aran 104 options
Noro Silk Garden Yarn - Silk Aran

45% Silk 45% Mohair 10% Wool, 109yds (100m)/50g (1.76oz), Aran

$11.63
$15.50
SALE Berroco Remix Light Yarn - Nylon DK 36 options
Berroco Remix Light Yarn - Nylon DK

30% Nylon 27% Cotton 24% Acrylic 10% Silk 9% Linen, 437yds (400m)/100g (3.53oz), DK | Light Worsted

$10.50
$14.00
Berroco Ultra Alpaca Light Yarn - Alpaca DK 46 options
Berroco Ultra Alpaca Light Yarn - Alpaca DK

50% Alpaca 50% Wool, 145yds (133m)/50g (1.76oz), DK | Light Worsted

$9.50
Lopi Plötulopi Yarn - Wool Worsted 45 options
Lopi Plötulopi Yarn - Wool Worsted

100% Wool, 328yds (300m)/100g (3.53oz), Worsted

$15.00
SALE Rowan Handknit Cotton Yarn - Cotton DK 44 options
Rowan Handknit Cotton Yarn - Cotton DK

100% Cotton, 93yds (85m)/50g (1.76oz), DK | Light Worsted

$7.49
$9.99
Valley Yarns Peru Yarn - Baby Alpaca Worsted 14 options
Valley Yarns Peru Yarn - Baby Alpaca Worsted

84% Baby Alpaca 8% Merino Wool 8% Nylon, 120yds (110m)/50g (1.76oz), Worsted

$8.49
Plymouth Yarn Hot Cakes Yarn - Acrylic Worsted 13 options
Plymouth Yarn Hot Cakes Yarn - Acrylic Worsted

75% Acrylic 25% Wool, 404yds (369m)/200g (7.06oz), Worsted

$16.99
Cascade Yarns Pacific Chunky Yarn - Acrylic Chunky 64 options
Cascade Yarns Pacific Chunky Yarn - Acrylic Chunky

60% Acrylic 40% Wool, 120yds (110m)/100g (3.53oz), Bulky

$8.25
SALE Valley Yarns Montague Yarn - Cotton Worsted 18 options
Valley Yarns Montague Yarn - Cotton Worsted

100% Cotton, 110yds (101m)/50g (1.76oz), Worsted

$5.59
$6.99
Malabrigo Noventa Merino Super Chunky Yarn 36 options
Malabrigo Noventa Merino Super Chunky Yarn

100% Merino Wool, 90yds (82m)/125g (4.41oz), Super Bulky

$24.80
Valley Yarns Valley Superwash Super Bulky Yarn 29 options
Valley Yarns Valley Superwash Super Bulky Yarn

100% Merino Wool, 55yds (50m)/100g (3.53oz), Super Bulky

$13.49
Tahki Yarns Superwash Merino Bulky Yarn 25 options
Tahki Yarns Superwash Merino Bulky Yarn

100% Wool, 109yds (100m)/100g (3.53oz), Bulky

$14.75
Cascade Yarns Ecological Wool Yarn - Wool Chunky 21 options
Cascade Yarns Ecological Wool Yarn - Wool Chunky

100% Wool, 478yds (437m)/250g (8.82oz), Bulky

$27.50
SALE Tahki Yarns Hatteras Yarn - Cotton Chunky 25 options
Tahki Yarns Hatteras Yarn - Cotton Chunky

100% Cotton, 109yds (100m)/100g (3.53oz), Bulky

$9.74
$12.99
Hayfield Baby Blossom Chunky Yarn - Acrylic Chunky 19 options
Hayfield Baby Blossom Chunky Yarn - Acrylic Chunky

70% Acrylic 30% Nylon, 170yds (155m)/100g (3.53oz), Bulky

$9.30
Valley Yarns Haydenville Bulky Yarn - Superwash Merino Chunky 25 options
Valley Yarns Haydenville Bulky Yarn - Superwash Merino Chunky

60% Merino Wool 40% Acrylic, 109yds (100m)/100g (3.53oz), Bulky

$10.99
Universal Yarn Bella Chenille Yarn - Polyester Super Chunky 29 options
Universal Yarn Bella Chenille Yarn - Polyester Super Chunky

100% Polyester, 131yds (120m)/100g (3.53oz), Super Bulky

$8.50
Paintbox Yarns Simply Chunky Yarn - Acrylic Chunky 76 options
Paintbox Yarns Simply Chunky Yarn - Acrylic Chunky

100% Acrylic, 149yds (136m)/100g (3.53oz), Bulky

$4.50
SALE Tahki Yarns Superwash Merino Worsted Twist Yarn 25 options
Tahki Yarns Superwash Merino Worsted Twist Yarn

100% Wool, 221yds (202m)/100g (3.53oz), Worsted

$11.06
$14.75
Plymouth Yarn Worsted Merino Superwash 97 options
Plymouth Yarn Worsted Merino Superwash

100% Merino Wool, 219yds (200m)/100g (3.53oz), Worsted

$17.99
SALE Berroco Comfort Yarn - Nylon Worsted 124 options
Berroco Comfort Yarn - Nylon Worsted

50% Nylon 50% Acrylic, 211yds (193m)/100g (3.53oz), Worsted

$4.00 - $8.00
$8.00
Paintbox Yarns Simply Aran Yarn - Acrylic Aran 82 options
Paintbox Yarns Simply Aran Yarn - Acrylic Aran

100% Acrylic, 201yds (184m)/100g (3.53oz), Aran

$4.50
Cascade Yarns Heritage Silk Yarn - Merino Wool 4 Ply 39 options
Cascade Yarns Heritage Silk Yarn - Merino Wool 4 Ply

85% Merino Wool 15% Silk, 437yds (400m)/100g (3.53oz), Fingering

$19.50
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Understanding Different Types of Yarn Weight

In the world of fiber arts, "weight" refers to the thickness of the yarn strand rather than the physical heaviness of the ball. Standardized yarn weights help crafters substitute fibers while maintaining the same scale. If your pattern calls for a specific weight and you aren’t sure where to start, here is a quick guide to the most common categories:

  • Lace & Fingering (Weights 0-1): These ultra-fine yarns are the best yarn for socks, lightweight shawls, and intricate lace edgings.
  • Sport & DK (Weights 2-3): Often called "lightweight" yarns, these are versatile favorites for baby clothes, spring cardigans, and stranded colorwork.
  • Worsted & Aran (Weight 4): This is the most popular yarn weight, prized for its balance of speed and stitch definition—ideal for sweaters, blankets, and hats.
  • Bulky & Super Bulky (Weights 5-6): Perfect for quick-knit gifts, these thick fibers create warm, cozy textures that work up in a flash on large needles or hooks.

Why Does Yarn Weight Matter?

Selecting the correct weight isn't just about the look; it’s about achieving gauge. If the yarn is too thin, your sweater will be too small; if it’s too thick, your project will be stiff and oversized. By matching your yarn weight to the designer's recommendation, you ensure the drape, durability, and size are exactly where they need to be.

Expert Tip: Always check your ball band! Most manufacturers list the Craft Yarn Council (CYC) number (0–7) right on the label to help you identify the weight at a glance.

How to Verify Your Yarn Weight: WPI and Gauge

If you have a mystery skein in your stash, you can determine its weight by measuring Wraps Per Inch (WPI). By wrapping the yarn snugly around a ruler, you can count how many times it fits into an inch to identify its category. We’ve also included the typical knitting gauge below to help you cross-reference your results and ensure your chosen pattern will have the perfect drape and fit.

Lace Weight: 18+ WPI, 32–40+ sts / 4"

Fingering Weight: 14–18 WPI, 27–32 sts / 4"

Sport Weight: 12–14 WPI, 23–26 sts / 4"

DK Weight: 11–13 WPI, 21–24 sts / 4"

Worsted Weight: 9–11 WPI, 16–20 sts / 4"

Heavy Worsted / Aran: 8–9 WPI, 16–18 sts / 4"

Bulky Weight: 6–8 WPI, 12–15 sts / 4"

Super Bulky: 5–6 WPI, 6–11 sts / 4"

Why Buy Yarn by Weight at WEBS?

When you shop for yarn by weight at WEBS, you aren't just getting variety—you're getting expertise. We categorize our yarns according to the Craft Yarn Council standards to take the guesswork out of your shopping experience. This ensures you can easily find the perfect match for your project, whether you're searching for a delicate lace or a cozy super bulky, with the confidence that every skein will meet your specific gauge and texture needs.

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