Double Knitting Explained

Have you ever wished your knitting looked just as beautiful on the back as it does on the front? Double knitting makes that possible, and then some. This transformative technique produces reversible fabrics with mirrored or complementary designs on both sides, offering both functionality and artistic versatility.

At first glance, double knitting can look intimidating. Two yarns, two sides, two layers, all worked at the same time. But with a clear understanding of the basics, such as cast-on methods, tension control, and chart reading; you'll find it's not only accessible but deeply satisfying.

If you're looking to create a cosy reversible scarf, a blanket with two personalities, or a bold statement garment, double knitting offers endless creative possibilities. In this guide, we'll walk through the fundamentals, share practical tips, and inspire you with project ideas to help you master this timeless technique with confidence and joy.

What is Double Knitting?

Double knitting is a method where you knit two fabrics simultaneously, back-to-back, on the same needles. Each stitch in your work is actually part of a pair: one stitch for the "front" layer and one for the "back" layer.

The result is a reversible fabric without floats (those horizontal strands you find in stranded colourwork) and with both sides equally beautiful. Designs can be perfectly mirrored or be unique on each side, depending on your colour placement.

The Basics of Double Knitting

When working double knitting, you knit one stitch in your first colour, then purl the next stitch in your second colour. These paired stitches form the two layers of fabric. By switching colours according to your chart, you can create patterns that appear in reverse on the other side.

It's perfect for projects like:

• Scarves that don't have a "wrong" side
• Cosy blankets with bold designs
• Reversible hats and garments

Benefits of the Double Knitting Technique

Double knitting isn't just about beauty; it's wonderfully practical, too.

• Warmth – The double layer traps more air, making it extra cosy.
• Durability – The interlinked layers add structure and strength.
• Neat Edges – No curling, thanks to the balanced construction.
• Creative Freedom – You can design reversible patterns or complementary images.
• Mindful Practice – It encourages focus, rhythm, and precision. Perfect for meditative knitting sessions.

Essential Tools and Materials for Double Knitting

The right tools and yarns make the learning curve smoother and the knitting more enjoyable.

Recommended Yarn Types and Colours

For smooth sailing, pick yarns that are soft, even, and a little springy; this helps your stitches sit neatly and makes knitting more enjoyable. Merino wool is a superstar here: warm, drapey, and fantastic for showing off your stitch work.

Some favourites to try:

• Knitting for Olive Merino – Soft and beautifully dyed for delicate, detailed projects.
• Ashford DK Yarn – Reliable, easy-care, and beginner-friendly without feeling “basic.
• Malabrigo Rios – Hand-dyed, superwash merino with gorgeous tonal depth.

Tip: Use contrasting colours at first so you can clearly see the layers and track your stitches.

Choosing the Right Needles

Choose needles that feel smooth, balanced, and comfortable in your hands so you can manage two yarns with ease.

We recommend:

• Ashford Bamboo Knitting Needles – Warm in the hand with just enough grip to keep stitches steady.
• ITO IC Needles – Clever, interchangeable tips and cables for all kinds of projects.
• Lykke Blush IC Needle Set – Beautifully made, comfortable to hold, and a joy to knit with.

How Double Knitting Works

At its heart, double knitting is about alternating stitches in two colours to create a pair—knit in one colour, purl in the other—so that each layer is built stitch by stitch.

Understanding Reversible Fabric

Because the layers are linked edge-to-edge, there are no loose floats. The back mirrors the front in opposite colours or shows a complementary design, depending on your chart.

Creating Mirrored and Complementary Designs

Once you’ve got the basics down, you can start having fun with your patterns.

• Mirrored designs are like looking into a colour-reversing mirror. Each side shows the same image, but the colours are swapped.
• Complementary designs don’t need to match at all. You might knit a sun on one side and a moon on the other by following a special double knitting chart.

It’s a simple way to make your project feel unique and full of personality.

Double Knitting Cast-On Methods

The cast-on is the very first impression your project makes, both visually and structurally. In double knitting, it’s especially important because the edge must integrate both colours evenly to support the two-layer fabric. A good cast-on creates a neat, elastic base and ensures the layers are joined correctly from the start.

Two-Coloured Long-Tail Cast-On

This is by far the most popular method for double knitting beginners and experts alike. Using both yarn colours from the very first stitch, it produces a clean, symmetrical edge that mirrors the double-layer structure. Each colour alternates along the cast-on edge, so both sides of your fabric begin and end in harmony.

Tubular Cast-On

If you’re making a garment neckline, cuff, or any edge where stretch is essential, the tubular cast-on is a beautiful choice. It creates a rounded, seamless edge that flows directly into your first row of stitches without a visible ridge. In double knitting, it gives the layers an elegant, professional start—perfect for hats, cowls, and fitted sleeves.

Provisional Cast-On

A go-to for projects where you want complete flexibility, the provisional cast-on uses waste yarn to create a temporary edge. Once your project is complete, you can return to this edge to graft it seamlessly, add borders, or even extend your knitting in either direction. In double knitting, it’s especially useful for infinity scarves or projects where both ends need to be joined invisibly.

Managing Two Yarns at Once

Working with two yarns means staying organized and comfortable. Finding a good way to hold and control your yarns helps keep your knitting smooth and tangle-free.

Yarn Tension and Hand Positioning

How you hold your yarn can make a big difference to your comfort and stitch consistency. Try a few methods to see what feels most natural.

• One yarn in each hand – Hold one yarn the Continental way (over your left index finger) and the other the English way (looped in your right hand). This keeps the colours clearly separated and makes it easier to avoid tangles.
• Both yarns in one hand – Ideal if you’re used to one knitting style. Use a yarn guide or loop the strands over different fingers to keep them feeding evenly without twisting.

Tip: Whichever method you choose, focus on keeping your movements small and your tension relaxed. Stiff hands make for stiff stitches.

Avoiding Twists and Tangles

Keeping your yarns happy and tangle-free makes knitting way more enjoyable!

• Hold your work up every few rows to let the yarns untwist naturally—it gives them a chance to relax and unwind.
• Keep each yarn in its own bowl or bag to stop them from rolling around and getting tangled or use a KnitPro Natural Yarn Dispenser to keep balls of yarn from rolling and tangling.

Tip: If you notice your yarns twisting a lot, pause and gently spin your knitting in the opposite direction to undo the twist.

Reading Double Knitting Charts

Charts for double knitting look different from standard knitting charts.

How Charts Differ from Standard Knitting Charts

Each square in a double knitting chart represents two stitches—one for each layer. You'll read both colours together.

Tips for Following Complex Patterns

• Start with small, simple motifs.
• Use KnitPro Mindful Markers to track repeats.
• Highlight chart rows as you go.

Common Mistakes and How to Fix Them

Uneven Tension Between Layers

Keep your yarn handling steady and consistent. Pause every few rows to check your tension.
It helps to swatch first so you can practise keeping both layers even before starting your main project.

Incorrect Colour Placement

If you notice a colour mistake, stop right away. Carefully “unknit” the affected stitch pairs—both stitches in the pair need fixing to keep your work neat and correct.

Practical Tips for Successful Double Knitting

Start with Simple Patterns

Scarves and coasters are ideal first projects as they're forgiving and let you focus on technique.

Swatching for Gauge and Technique

Swatching isn't just about gauge; it helps you refine tension and colour handling before committing to a full piece.

Bring Your Knitting to Life with Double Knitting

Double knitting is more than a technique—it's a mindful craft that invites you to explore creativity and precision in equal measure. Its reversibility, warmth, and design flexibility make it a favourite among adventurous knitters. With the right yarns, needles, and tools, you can master it at your own pace.

At Thread Collective, we're proud to provide the materials and inspiration for your next double knitting project—whether that's your first reversible scarf or a complex two-sided masterpiece. With patience and practice, you'll discover the joy of creating fabrics that are as beautiful on the back as they are on the front—a true celebration of skill and artistry.