Scrap-Friendly Bias Tape for Handmade Sewing Projects

Bias tape is one of those small sewing supplies that can quietly transform a project. It neatly encloses raw edges, strengthens curved seams and gives handmade garments a polished finish. Making your own means you can match the fabric, choose the width and use pieces that might otherwise be too small for another project.

The method is especially useful for indie sewing patterns, where a carefully chosen binding can become part of the design. A floral cotton lawn might soften a neckline, while a contrasting woven fabric can add definition to an armhole or hem. Once you understand the grain and joining process, homemade bias binding becomes straightforward.

Scraps are ideal, provided they are stable enough for the job. Before cutting, consider the garment fabric, the amount of wear the binding will receive and whether the finished tape needs to be single-fold or double-fold. A little planning will help you avoid bulky joins and stretching.

Choose Suitable Scraps

Lightweight to medium-weight woven fabrics are generally the easiest to turn into bias tape. Cotton lawn, quilting cotton, linen, chambray, viscose twill and lightweight denim can all work, although thicker cloth may need a wider cut and careful pressing. Avoid very loose weaves unless you stabilise them first, as they can distort while being sewn.

The scrap does not need to be a single large rectangle. Small pieces can be joined into a continuous strip, creating an attractive patchwork effect. Keep similar weights together, and wash and press the fabrics before cutting if the finished item will be laundered regularly.

If you are preparing fabric for a first independent pattern, the advice in these fabric recommendations can help you judge whether a particular woven cloth will behave well. Fabric choice affects how easily the tape folds, stretches and sits around a curve.

Find the Bias Grain

The bias is the diagonal direction of woven fabric, running at approximately 45 degrees to the selvedge. Fabric cut on this angle has more flexibility than fabric cut along the straight grain, which allows bias tape to move smoothly around necklines, curved hems and armholes.

Start with a pressed scrap and identify the selvedge or the direction of the weave. Fold one straight edge across the fabric so it meets a perpendicular edge, forming a diagonal fold. This fold shows the true bias. Mark parallel lines from that edge using tailor’s chalk, a washable pen or a ruler.

The width you cut depends on the finished binding. For a single-fold tape, cut roughly twice the desired finished width, adding a little extra for pressing and seam allowance. For double-fold tape, cut approximately four times the finished width. Always check the pattern instructions first, since neckline and armhole finishes may require a specific measurement.

Cut and Join the Strips

Cut carefully along the marked diagonal lines. A rotary cutter and quilting ruler make the process quick and accurate, but sharp fabric scissors work perfectly well. Keep the strips even from end to end; inconsistent widths can make the final tape twist or expose raw edges.

To join two strips, place them right sides together at a right angle. The ends should extend beyond each other, creating a small cross shape. Draw a diagonal line from one corner to the opposite corner, then stitch along it. Trim the seam allowance to around 6 mm and press the seam open.

Binding style	Approximate cutting width	Useful for
Narrow single-fold	3–4 cm	Small hems, pockets and delicate details
Standard single-fold	4–5 cm	Necklines, armholes and facing edges
Double-fold	6–8 cm	Enclosing thicker raw edges
Wide decorative binding	8 cm or more	Contrast bands, exposed seams and trims

Continue adding strips until you have enough length for the project, plus a little extra. Stagger the joins rather than placing several seams together, particularly if the tape will sit along a visible neckline. A quick pressing after each join will keep the strip flat and easier to handle.

Press the Bias Binding

For single-fold bias tape, press the strip in half lengthways with the wrong sides together, then open it and press each long raw edge towards the centre crease. For double-fold tape, fold the strip in half first and then fold both raw edges towards that fold. A bias tape maker can speed up this stage, but it is not essential.

Use a moderate iron temperature suited to the fabric and press rather than drag the iron. Pulling the strip while pressing can stretch it out of shape. If the fabric is especially mobile, place it on a padded surface and use plenty of steam or a light spray of water.

A tailor’s clapper can help set the folds in cotton and linen. Allow the tape to cool before moving it, as this helps the creases hold. Store the finished binding loosely wound around a card rather than tightly folded, which can create sharp unwanted creases.

Apply It Neatly

Before sewing, pin or clip the bias tape around the edge and check that it lies smoothly through every curve. On a neckline, begin at a less noticeable point and leave a short tail. Sew the first pass with the tape opened or with the appropriate fold aligned to the edge, depending on the pattern’s instructions.

For a clean finish, keep the stitching line consistent and avoid stretching the garment edge. Ease the tape around curves with small adjustments rather than forcing it into place. On tight curves, clipping the seam allowance of the garment may help, but take care not to cut through the binding.

Choosing a suitable independent pattern also makes construction easier. This guide to finding the right pattern explains why fit and design details matter before fabric preparation begins. A binding finish is much easier to control when the neckline or armhole has been drafted with a manageable curve.

If the second stitching line will be visible, sew from the garment side and use a matching thread. Stitch-in-the-ditch is subtle, while a narrow decorative line can make contrasting bias tape stand out. Press the finished edge gently and inspect the inside for any missed sections.

Solve Common Binding Problems

Wavy binding usually means the tape or garment edge was stretched during pressing or sewing. Let the piece rest, then press it over a tailor’s ham or a rolled towel. If the wave remains, unpick the affected area and reattach it with less tension.

Bulky joins can result from seams placed too close together or from using fabric that is too heavy. Trim seam allowances neatly, press them open and consider reducing the width of the tape for lightweight edges. If the binding is too narrow to cover the raw edge, remove it and cut a wider replacement rather than trying to force it into position.

Uneven width is often caused by inaccurate cutting or a seam that was sewn at an angle. Measure the strip in several places before pressing. For future projects, join fewer, longer strips where possible and use a ruler to mark the cutting lines.

Make Scraps Work Harder

Small pieces of leftover fabric can become a coordinated collection of handmade trims. Keep scraps sorted by fibre, weight and colour, then join them into short lengths when you have time. Label a card with the finished width so the binding is ready for future projects.

These habits make homemade tape more reliable:

• Press every scrap before measuring and cutting.
• Match fabric weights when joining strips.
• Cut extra length for corners, joins and handling.
• Test the tape on a sample curve before applying it to the garment.
• Keep a few centimetres of leftover binding for future repairs.

Bias tape can also finish quilted accessories, apron edges, bag openings and exposed seams. For children’s clothing or frequently washed garments, use a firmly woven fabric and secure the ends carefully. For decorative projects, mixing prints can create a charming patchwork border without buying additional trim.

The best results come from treating the tape as part of the construction rather than an afterthought. With a few scraps, a ruler and an iron, you can create custom binding that fits the project precisely and gives practical value to leftover fabric. Set aside a small bundle of suitable scraps today, make a short length of bias tape and use it to add a considered finish to your next handmade garment.