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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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Plymouth Yarn Soft Serve 12 options
Plymouth Yarn Soft Serve

100% Acrylic, 207yds (189m)/100g (3.53oz), Worsted

$7.99
SALE Willow & Lark Drift 8 options
Willow & Lark Drift

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

$5.85
$9.00
Noro Akari 29 options
Noro Akari

26% Silk 21% Cotton 15% Viscose 14% Mohair 24% Other, 528yds (483m)/200g (7.06oz), Worsted

$47.50
SALE Valley Yarns Valley Superwash DK 100 Gram Hanks
Valley Yarns Valley Superwash DK 100 Gram Hanks

100% Merino Wool, 274yds (251m)/100g (3.53oz), DK | Light Worsted

$9.37
$12.49
SALE Rowan Tweed Haze 8 options
Rowan Tweed Haze

40% Mohair 39% Alpaca 10% Polyester 8% Cotton 3% Polyamide, 131yds (120m)/50g (1.76oz), Bulky

$17.60
$22.00
SALE Ella Rae Cashmereno Sport Taffy 8 options
Ella Rae Cashmereno Sport Taffy

55% Merino Wool 33% Acrylic 12% Cashmere, 137yds (125m)/50g (1.76oz), Sport

$6.48
$12.95
Paintbox Yarns Wool Blend Super Chunky 20 options
Paintbox Yarns Wool Blend Super Chunky

75% Acrylic 25% Wool, 66yds (60m)/100g (3.53oz), Super Bulky

$6.75
Sesia Flora Paillettes 7 options
Sesia Flora Paillettes

95% Cotton 5% Polyester, 114yds (104m)/25g (0.88oz), Fingering

$14.00
Plymouth Yarn Aireado 7 options
Plymouth Yarn Aireado

70% Baby Alpaca 23% Nylon 7% Wool, 283yds (259m)/100g (3.53oz), Bulky

$26.99
Paintbox Yarns Baby DK Prints 19 options
Paintbox Yarns Baby DK Prints

55% Nylon 45% Acrylic, 183yds (167m)/50g (1.76oz), DK | Light Worsted

$5.50
Koigu Paint Cans 9 options
Koigu Paint Cans

100% Merino Wool, 435yds (398m)/125g (4.41oz), Fingering

$40.00
Blue Sky Fibers Brushed Suri 15 options
Blue Sky Fibers Brushed Suri

67% Alpaca 22% Merino Wool 11% Bamboo, 141yds (129m)/50g (1.76oz), DK | Light Worsted

$19.60
SALE Sirdar No.1 DK 31 options
Sirdar No.1 DK

50% Acrylic 50% Nylon, 252yds (230m)/100g (3.53oz), DK | Light Worsted

$5.13
$10.25
Valley Yarns Berkshire Bulky 100 Gram Hanks
Valley Yarns Berkshire Bulky 100 Gram Hanks

85% Wool 15% Alpaca, 92yds (84m)/100g (3.53oz), Bulky

$8.49
Berroco Millstone Tweed 38 options
Berroco Millstone Tweed

60% Wool 20% Polyamide 20% Viscose, 97yds (89m)/50g (1.76oz), Aran

$11.50
SALE Koigu Chelsea Merino 25 options
Koigu Chelsea Merino

100% Merino Wool, 125yds (114m)/100g (3.53oz), Aran

$23.20
$29.00
SALE Yarn Vibes Cliff of Moher 14 options
Yarn Vibes Cliff of Moher

60% Wool 40% Virgin Wool, 164yds (150m)/100g (3.53oz), Worsted

$10.49
$13.99
SALE Berroco Lumi 19 options
Berroco Lumi

80% Cotton 18% Polyester 2% Other, 137yds (125m)/50g (1.76oz), DK | Light Worsted

$8.80
$11.00
SALE Blue Sky Fibers Woolstok North 12 options
Blue Sky Fibers Woolstok North

100% Wool, 159g (5.61oz), Super Bulky

$19.20
$24.00
Debbie Bliss Aymara 19 options
Debbie Bliss Aymara

100% Baby Alpaca, 109yds (100m)/50g (1.76oz), DK | Light Worsted

$12.50
Berroco Merino 401 37 options
Berroco Merino 401

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

$10.00
SALE Stacy Charles Fine Yarns Jewel 6 options
Stacy Charles Fine Yarns Jewel

89% Merino Wool 6% Polyamide 5% Metallic, 218yds (199m)/50g (1.76oz), DK | Light Worsted

$10.40
$16.00
SALE Queensland Collection Kathmandu DK 100 14 options
Queensland Collection Kathmandu DK 100

85% Merino Wool 10% Silk 5% Cashmere, 295yds (270m)/100g (3.53oz), DK | Light Worsted

$22.36
$27.95
SALE Berroco Gaia 12 options
Berroco Gaia

70% Cotton 30% Polyester, 140yds (128m)/50g (1.76oz), DK | Light Worsted

$5.50
$11.00
SALE Universal Yarn Uptown Bamboo DK 38 options
Universal Yarn Uptown Bamboo DK

80% Acrylic 20% Bamboo, 284yds (260m)/100g (3.53oz), DK | Light Worsted

$6.00
$7.50
Debbie Bliss Super Chunky Merino 15 options
Debbie Bliss Super Chunky Merino

100% Merino Wool, 87yds (80m)/100g (3.53oz), Super Bulky

$19.50
SALE Berroco Splash 14 options
Berroco Splash

70% Viscose 30% Cotton, 131yds (120m)/50g (1.76oz), DK | Light Worsted

$4.95
$11.00
Cascade Yarns 220 Superwash Hand Paint 14 options
Cascade Yarns 220 Superwash Hand Paint

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

$14.50
SALE Rowan Four Seasons 9 options
Rowan Four Seasons

60% Cotton 40% Acrylic, 82yds (75m)/50g (1.76oz), Worsted

$3.48
$6.95
SALE Sirdar Snuggly Cashmere Merino 24 options
Sirdar Snuggly Cashmere Merino

57% Wool 33% Acrylic 10% Cashmere, 142yds (130m)/50g (1.76oz), DK | Light Worsted

$10.69
$14.25
SALE Rowan Cotton Revive 10 options
Rowan Cotton Revive

80% Cotton 20% Other, 273yds (250m)/100g (3.53oz), Sport

$4.73
$10.50
Koigu Jasmine 24 options
Koigu Jasmine

100% Merino Wool, 242yds (221m)/100g (3.53oz), DK | Light Worsted

$33.00
SALE Berroco Ultra Alpaca Chunky Natural 7 options
Berroco Ultra Alpaca Chunky Natural

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

$12.80
$16.00
Debbie Bliss British Wool Aran 14 options
Debbie Bliss British Wool Aran

100% Wool, 98yds (90m)/50g (1.76oz), Aran

$12.00
The Yarn Collective Bloomsbury DK 12 options
The Yarn Collective Bloomsbury DK

100% Merino Wool, 263yds (240m)/100g (3.53oz), DK | Light Worsted

$25.00
Cascade Yarns Merino DK 10 options
Cascade Yarns Merino DK

100% Merino Wool, 254yds (232m)/100g (3.53oz), DK | Light Worsted

$12.50
Lion Brand 24/7 Cotton 43 options
Lion Brand 24/7 Cotton

100% Cotton, 186yds (170m)/100g (3.53oz), Worsted

$5.99
Debbie Bliss Nell 12 options
Debbie Bliss Nell

78% Mohair 13% Merino Wool 9% Polyamide, 109yds (100m)/50g (1.76oz), Bulky

$14.00
SALE Blue Sky Fibers 27 Color Bundle
Blue Sky Fibers 27 Color Bundle

100% Wool, 12yds (11m)/5g (0.18oz), DK | Light Worsted

$37.20
$46.50
SALE Plymouth Yarn Cielo 10 options
Plymouth Yarn Cielo

80% Merino Wool 20% Nylon, 109yds (100m)/100g (3.53oz), Super Bulky

$8.75
$17.49
SALE Adriafil Stellato 8 options
Adriafil Stellato

50% Viscose 23% Wool 23% Polyamide 4% Polyester, 114yds (104m)/50g (1.76oz), Worsted

$5.50
$10.99
SALE Fibra Natura Cobblestone 16 options
Fibra Natura Cobblestone

100% Merino Wool, 612yds (560m)/200g (7.06oz), DK | Light Worsted

$24.75
$33.00
West Yorkshire Spinners Signature 4 Ply 78 options
West Yorkshire Spinners Signature 4 Ply

75% Wool 25% Nylon, 437yds (400m)/100g (3.53oz), Fingering

$19.50
$19.50
Adriafil Calzasocks Solids 10 options
Adriafil Calzasocks Solids

75% Wool 25% Nylon, 459yds (420m)/100g (3.53oz), Fingering

$16.99
SALE Trendsetter Yarns Pavlova 6 options
Trendsetter Yarns Pavlova

72% Cotton 28% Viscose, 308yds (282m)/100g (3.53oz), DK | Light Worsted

$10.00
$20.00
Valley Yarns Berkshire 100 Gram Hank
Valley Yarns Berkshire 100 Gram Hank

85% Wool 15% Alpaca, 140yds (128m)/100g (3.53oz), Worsted

$8.49
Stylecraft Special Chunky 50 options
Stylecraft Special Chunky

100% Acrylic, 157yds (144m)/100g (3.53oz), Bulky

$3.59
SALE Jody Long Andeamo 17 options
Jody Long Andeamo

85% Wool 15% Alpaca, 175yds (160m)/200g (7.06oz), Super Bulky

$21.56
$26.95
SALE Cascade Yarns Pacific Chunky Effects 8 options
Cascade Yarns Pacific Chunky Effects

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

$6.75
$9.00
SALE Trendsetter Yarns Stride 7 options
Trendsetter Yarns Stride

85% Wool 15% Acrylic, 175yds (160m)/100g (3.53oz), Bulky

$12.00
$24.00
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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.