Grimes Worsted Acrylic Yarn: A Project Planning Guide

Each ball of Grimes holds 150 grams and 230 meters (about 252 yards) of 100% acrylic medium-weight yarn, and every pack contains three balls. Because these balls are larger than the common 100-gram size, you will join fewer balls and weave in fewer ends. It also changes how you work out quantities for a project.

This guide explains what the Grimes label tells you and what it leaves out. It also shows how to calculate how much yarn you need for blankets, scarves, and other medium-weight projects.

What the "4 Medium" Classification Means for Grimes

Grimes is listed as a category 4 Medium yarn, the group that includes worsted, afghan, and aran yarns. You can start with a pattern written for any of these names, but the category covers a range of thicknesses. A worsted pattern and an aran pattern will not always give the same gauge with the same yarn.

The product listing does not give a recommended gauge, needle size, or hook size for Grimes. The Craft Yarn Council's general guidelines for category 4 yarns suggest about 16–20 stitches per 4 inches (10 cm) in stockinette on US 7–9 (4.5–5.5 mm) needles, and crochet hooks from US I-9 to K-10½ (5.5–6.5 mm). These ranges are only a starting point, not a specification for this yarn. Make a swatch and wash it the way you plan to wash the finished item before you start anything where size matters, such as a sweater.

A clue from the length-to-weight ratio

Grimes works out to about 153 meters per 100 grams (230 m ÷ 150 g). For comparison, Ice Yarns Favorite, another 100% acrylic category 4 yarn, has 210 meters per 100-gram ball. Fewer meters per gram usually points to a thicker or denser strand, so Grimes may sit toward the heavier, aran end of the medium range. Twist and construction also affect this ratio, though, so this is only an estimate, not a measured thickness. Your swatch will show how the yarn actually behaves.

Planning Quantities with 150-Gram Balls

The ball length and the pack length are different figures, so check which one a calculation needs:

• Per ball: 230 m (about 252 yd), 150 g
• Per pack of 3 balls: 690 m (about 755 yd), 450 g

To estimate how much to buy, divide the total yardage in your pattern by 252 and round up to the next whole ball. Then divide by three to find the number of packs. For example, a throw pattern that calls for 1,200 yards needs about 4.8 balls, so you would need 5 balls. Two packs give you 6 balls, which leaves one spare.

If your pattern lists yarn by weight instead of length, convert it to length first. Grams do not compare well between yarns with different meters-per-gram ratios. Say a pattern asks for 500 g of a yarn that has 200 m per 100 g. That is 1,000 m in total, which works out to 5 balls of Grimes (750 g), much more weight than the pattern lists.

Other factors change how much yarn you use:

• Stitch pattern: Cables, bobbles, and dense crochet stitches such as puff or bobble stitch use noticeably more yarn than plain stockinette or single crochet.
• Fabric width and size: A blanket that is 10% wider and 10% longer needs about 21% more yarn, not 10%.
• Your own gauge: Working tighter or looser than the pattern gauge changes both the size of the piece and the amount of yarn it takes.

It is good general practice to buy all the yarn for a project at the same time so the color stays consistent from ball to ball.

Projects That Suit Grimes

Afghans and throws

"Afghan" is one of the names in Grimes's weight category, and the large balls are handy for big, flat pieces. You will join balls less often in blanket squares, granny-stripe throws, or plain garter-stitch afghans.

Winter scarves, hats, and cowls

Medium-weight acrylic is a common choice for cold-weather accessories. Many basic adult hat patterns in medium-weight yarn call for somewhere around 150–250 yards. Check your pattern's figure against the 252 yards in one ball before you start, because a deep brim or a pompom can push the total higher.

Two-color stripes

Grimes is currently listed in Dark Purple and Red. You can combine the two in a striped scarf or blanket. For stripes, work out the yardage for each color separately, because the stripe widths are rarely split evenly between them.

Practice projects

Beginners often find medium-weight yarn easier to work with than fine yarn, because the stitches are larger and easier to see and count. A dishcloth-sized swatch is an easy first project and also gives you gauge information for later.

Grimes Specifications

Related Ice Yarns to Compare

Favorite is also 100% acrylic in the 4 Medium category, but it comes in 100 g balls with 210 m each. The manufacturer lists its gauge as 17 stitches and 27 rows per 10 cm. Compare it with Grimes if you want a medium-weight acrylic that comes with a stated gauge.

Zerda Alpaca is in the same weight category and blends 30% alpaca with 70% Dralon. Consider it if you want some animal fiber in a medium-weight project.

Atlas is a 100% acrylic yarn one step heavier, in the 5 Bulky category. It suits projects where you want thicker fabric and faster progress.

Questions Before You Buy

How should I wash items made with Grimes?

The product listing does not include care instructions, so check the ball band before washing. In general, many acrylic yarns can be machine washed on a gentle cycle, but high heat can relax or distort acrylic fabric. Wash your swatch first to see how the yarn behaves.

Will acrylic pill?

Any yarn can pill where the fabric rubs, such as under the arms or on the ends of a scarf. How much an item pills depends on the yarn's construction, how tightly you work, and how the item is used, so no acrylic can be promised to stay pill-free.

Ready to plan your next medium-weight project? See Grimes in Dark Purple and Red and work out your pack count with the yardage math above.