How to use yarn double in knitting or crochet

Have you ever wondered what using yarn double means? Or are you unsure of how to knit or crochet with multiple strands of yarn?

Then you're in the right place, because this blog post is all about holding yarn double for your knitting or crochet, or using multiple strands together.

If you have a mix of yarn weights and colours in your stash, then don’t let them sit unused! This is a great method for stash-busting, and it's also really easy to do.

Holding yarn double, or using multiple strands of yarn together, is a simple way to create a unique texture, blend colours, and use up leftover yarn. Whether you want to make a thicker yarn, add a marled effect, or just experiment, this technique is perfect for stash-busting and mindful crafting.

Why Hold Yarn Double, or Hold Multiple Strands Together?

• Create a thicker yarn – Combine thinner yarns to match the weight of a pattern or make a chunkier fabric.
• Blend colours for a unique look – Mixing different colours creates a marled effect with subtle (or bold) variations.
• Add texture and depth – Combining smooth and textured yarns can create an interesting visual and tactile effect.
• Help use up leftover stash – Perfect for using up odd balls and small amounts of yarn, which therefore makes it a great stash-busting technique.

How to hold multiple strands together

1. Choose your yarn – You can mix yarn weights, textures, and colours for different effects. For a smooth result, try to use similar fibre types.
2. Wind the yarn together – To avoid tangling, wind the strands into a single ball before you start. You can also use a yarn guide or clip to keep them organised.
3. Adjust your hook or needle size – The new thickness will be heavier than each individual strand, so size up accordingly.
4. Check your gauge – Always swatch before starting a project to ensure you like the fabric and that it works for your pattern.
5. Work carefully – Make sure you insert your hook or needle through all strands in each stitch to keep your work even and avoid loose loops.
6. Watch your tension – Some strands may pull tighter than others. Keep your grip relaxed and adjust as needed.

How to size up your individual strands

• 2 strands of lace weight = fingering/sock weight
• 2 strands of fingering/sock weight = sport to double knitting weight
• 2 strands of sport/double knitting weight = aran (worsted) weight
• 2 strands of aran (worsted) = chunky (bulky)
• 2 strands of chunky (bulky) = super chunky (super bulky)

Tips for Success

• Match fibres when possible – Using all cotton, all wool, or similar fibres helps keep the tension even.
• Experiment with colour and texture – Try combining different shades or even adding a novelty yarn for contrast.
• Use a yarn bowl or bag – This helps prevent strands from twisting and tangling as you work.
• Perfect for stash-busting! – Great for quick makes like washcloths, scarves, or chunky blankets.

Project Ideas

• Chunky beanies and scarves;
• Marled-effect sweaters;
• Stash-busting blankets;
• Textured baskets and home decor;
• Quick stash washcloths.

Using multiple strands together is an easy way to make the most of your yarn stash.

Have you tried this technique before?

Let me know in the comments what you've made! I'll be adding more posts in this series soon, including how to create a marled and ombre gradient by holding yarns double.