How to Make and Sew Bias Tape

How to Make and Sew Bias Tape

Learn how to sew bias tape to finish edges on clothing and craft projects.

How to Make and Sew Bias Tape

I spent years of my sewing life hating bias tape. It was fiddly and took patience and attention to detail to sew it on correctly. And I never sewed it on correctly because I was trying to go fast. So instead of sewing in two passes, I’d sandwich it over the fabric edge and that just never turns out pretty.  Unless you have the special presser foot for your machine, which I didn’t. But now that I’ve gotten older and more patient I’ve learned to love bias tape. It adds a great detail, like on these Coastal Cargos (my pattern).

Bias tape detail on Coastal Cargos pattern by Blank Slate Patterns

And of course you can’t get that kind of fabric when you buy pre-packaged tape, so I’ve also learned to make my own, which I will show you today.

What Is Bias Tape?

So, what is bias tape? Let’s go back to thinking about grainlines. Bias tape is fabric that is cut on the bias grain. Then it has the raw edges folded and pre-pressed to the wrong side. Because it is cut on the bias, it can stretch a little, even though it’s typically made of woven fabric. The bias grain also allows the tape to be pressed into curved shapes. This means it’s good for finishing curved edges like necklines. It can also be a nice decorative touch of contrast. It can be used to finish seams , hems and raw edges or add a decorative touch to a garment, or both. Below are some examples of how I’ve used bias tape.

Tank top with green bias tape finishing neckline and armholes

The tank top pictured above features a neckline and armholes finished with double fold bias tape. And yes, you can use woven fabric bias tape to finish a knit garment.

Double Fold Bias Tape sewing to finish a waistband

The insides of my Tillery Skirt pictured above also feature double fold bias tape to finish the waistband. This method results in less bulk than turning the seam allowance of the denim to the wrong side.

Neckline of a shirt finished with single fold bias tape

And the neckline of the Hathaway Tank above is finished with bias tape for a thin width and clean finish that doesn’t require a facing.

Types – Single and Double Fold

Since there are examples of both single and double fold bias tape above, let’s talk about the differences between the two. Single fold bias tape has the edges folded once, double fold has the edges folded twice. You can see examples of each below.

Single fold vs double fold bias tape

Essentially, double fold bias tape starts out as single fold tape, and then you fold it in half and press again to get the double fold. A main difference between the two is that in order to use the double fold type, you want to make sure there is no seam allowance, as the tape will finish right to the raw edge of the main fabric. With single fold tape you need a seam allowance equal to half the width of the tape.

Make Your Own

Bias tape is sold in packages at the fabric store, but lately I have really enjoyed making my own. It’s especially satisfying once you learn the continuous method to cut the fabric into bias strips. You can get yards of bias tape out of a fat quarter with this method, and you only have to sew two seams! Watch the video below or on YouTube here to see how that’s done, or head to this post for written instructions.

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I just got some of these Clover bias tips

(affiliate link) and I love how they help me quickly iron my cut strips into folded bias binding.

Mint green floral print fabric bias tape and bias tape maker

Bias tape makers like these are usually available in the quilting tools section of the fabric store and easy to find online. But now that I understand how they work, I got to thinking – what if you don’t have one? What if you need a non-standard size of bias tape?

The easiest tip I’ve seen is to use a long straight pin, and pin it through the fabric of your ironing board at the finished width you need. The thread the bias strip under the pin and it will help fold the fabric as you pull it through and iron it. Make sure the pin you use had a pin head that will not melt near the See the example below with my favorite type of glass head pins (affiliate link).

Trick for making your own bias tape without a bias tape maker - use a long straight pin on your ironing board

To make double fold tape you would first make single fold tape, then you fold the single fold in half and line up the edges and iron again. I don’t use a jig or a tip for this part, it’s not too hard to iron in one fold.

How to Sew Double Fold Bias Tape

First I’m going to show you how to use double fold bias tape. This type of tape wraps around the raw edge of the fabric. Because of that, you don’t need a seam allowance to use this as a finish. I made a video which you can watch below or on YouTube here showing how to sew double fold tape.

How to miter corners

The double fold tape video above shows how to miter around a corner with your binding, but here’s a still image visual too.

How to - bias tape corner - Melly Sews

Your can also find a written tutorial for bias corners in this post.

How to Sew Single Fold Bias Tape

Sewing single fold tape is slightly different. Because you’ll be folding in the raw edge of the fabric under the tape, you do need a seam allowance equal to half the width of the tape. Here’s a video showing how to do it, which you can also watch on YouTube here. If you prefer a written tutorial, check out this post.

Now have some fun making your own bias tape and using it to add a professional looking finish and a pop of color and pattern to your sewing!  Until next time, happy sewing.

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