Turn Fabric Scraps into Continuous Bias Binding

Every sewist has a guilty pile. Mine lives in a tin under the cutting table, full of bits left over from summer dresses, kids' leggings, and that inevitable viscose remnant from the last Spotlight trip. Throwing those odd shapes away feels wasteful, yet keeping them as individual triangles never amounts to anything useful. Continuous bias binding is the answer I keep coming back to: it turns a scrappy mound into a long, even strip ready to finish necklines, armholes, and quilt edges.

Sustainability motivates many of us sewing at home in Australia. With op shops in Adelaide, Brisbane, and Hobart overflowing with donated sheeting and shirts, learning to make your own trim from scraps keeps costs down and helps a maker use every last piece. A single metre of ready-made binding can sting at the checkout, while leftover fabric is essentially free.

Once you master the technique, you will find excuses to use it on everything. Bias strips stretch gently around curves, sit flatter on a curved hem than straight-grain binding, and add a quiet pop of contrasting colour inside a garment. It pairs beautifully with a self-lined yoke project if you want a fully coordinated finish.

Understanding Bias Binding and the Continuous Method

Bias binding is a strip of fabric cut at a 45-degree angle to the grain, which gives it that subtle stretch and drape. The continuous method is a clever bit of geometry: instead of cutting dozens of short strips and sewing them end to end, you join a few scraps into a tube, mark a single diagonal line, and cut one unbroken spiral. The result is yards of binding from a small pile of scraps.

For Australian sewists dealing with our humid climate, bias binding is particularly forgiving. Brisbane summers and Melbourne's "four seasons in a day" weather push garments through a lot of wear and washing, and a bias-bound edge holds up better around armholes and necklines because the threads have more give.

The continuous technique was popularised by quilters who needed enormous quantities of binding for full-size quilts, but it works just as well for a dressmaker finishing a single blouse. A few fat quarters or larger scraps will produce several metres of usable tape.

Tools and Fabric Selection from Your Stash

You do not need anything fancy. A rotary cutter, mat, and ruler are ideal, but sharp fabric scissors work too. You will also want an iron, a pressing cloth, and a sewing machine with a reliable quarter-inch foot. Pins or wonder clips and a fabric marker complete the kit.

Fabric choice matters more than people think. Lightweight cottons, lawns, and shirtings from your scrap tin cut beautifully and press crisply. Avoid anything too thick, like denim offcuts from old jeans, as the layers become bulky when folded. A drapey viscose remnant from a recent Melbourne project can work wonderfully for binding a silk-look camisole, provided you stabilise it with a light interfacing first.

If your stash is thin, scout the remnant table at your local Spotlight or Lincraft, or pop into an op shop in country Victoria for vintage sheets. Old polycotton bed sheets are brilliant for practising because the fabric is stable, easy to mark, and comes in generous pieces.

Preparing and Joining Your Scraps

Lay your scraps flat and trim away the selvedges. Press each piece thoroughly so no stubborn folds throw off your measuring later.

Pair up scraps with right sides facing and stitch them along the short edges with a quarter-inch seam allowance, alternating the direction of the points so the resulting shape resembles a rough parallelogram. Press all seams open to reduce bulk. Aim for a piece that is roughly square and at least 25 cm across so you have plenty of strip to work with.

If you want to practise on something larger before tackling a precious remnant, the technique translates well to big pieces too. A spare metre of quilting cotton from the clearance rail at Spotlight or a sheet bought from a Salvos store gives you room to experiment without worry. Once your parallelogram is ready, you are set up for the cleverest part of the process.

Cutting and Joining into a Continuous Strip

Place your joined scrap piece right side down on the cutting mat. Find one short edge and use a fabric marker to draw a single line at a 45-degree angle from one corner up to the opposite long edge. Fold the piece in half lengthwise, right sides together, matching the two short edges and forming a tube. The drawn line should now appear at both ends of the tube, creating a continuous diagonal around the cylinder.

Pin along the drawn line and stitch exactly on it. Once sewn, snip the corner off the tube where the seam allowance sits at a sharp point. Press the seam open and lay the tube flat. The magic happens when you cut along the folded edge: the single diagonal seam has turned the tube into a spiral, and cutting a continuous strip around that spiral yields metres of bias tape from one small piece of fabric.

The first time you do this it feels a bit like wizardry. Watching a small pile of scraps unravel into a graceful ribbon never gets old, and it is genuinely handy for finishing a Love Notions nightshirt hack where you want neat trim inside the collar and cuffs. The method scales up beautifully for bigger projects too.

Pressing, Folding, and Using Your Tape

Once you have cut your continuous strip, the next step is to press it. Some sewists like to use a bias tape maker for perfectly even folds, while others prefer the traditional finger-press-and-iron method. Both work; the maker is faster and gives a uniform result, but a careful iron job is just as neat and costs nothing.

For traditional double-fold binding, fold the strip in half lengthwise with wrong sides together, press, then fold each raw edge into the centre and press again. You now have a tidy, ready-to-use tape that can be sewn directly onto a project. For a single-fold finish, simply fold each long edge toward the centre by about 1 cm and press.

Using your homemade binding is the most satisfying part. Pin it to a raw edge with right sides together, sew along the first fold line, wrap it around to the back, and edgestitch from the right side to catch the underside. This finish works beautifully for armholes, necklines, and even the self-lined yoke on a shirt, where a clean inside finish really shows. If you are working with a dark printed fabric that hides chalk lines, brush up on the trick of marking dark fabric before you baste the binding in place.

Choosing Your Binding Method

Method	Best For	Tools Needed	Finish Quality
Finger-press and iron	Small batches, scraps, beginners	Iron, pressing cloth, pins	Good, slightly variable
Bias tape maker	Long lengths, uniform results	Bias tape maker, iron	Excellent, very consistent
Pre-folded shop-bought	Quick jobs, single-use projects	None	Good but limited colour choice
Single-fold hand finished	Heirloom or curved work	Iron, tailor's ham	Excellent on delicate fabrics

Choosing between these approaches depends on your project, the time you have, and the look you want. For most everyday makes around the home sewing room, a homemade continuous strip pressed with a bias tape maker strikes a lovely balance between speed and quality.