Paper bunting is cheap, cheerful, and gone by Monday. Fabric bunting is the version that survives the party. Sewn once and finished with bias tape, a set of cloth triangles will hang through a garden birthday, a christening, three Christmases, and one very windy school fete before it needs any attention. The construction is simple enough for a first sewing project: triangles, tape, and straight stitches. What separates a set that sags at the corners and frays along the points from one you'll dig out year after year comes down to three decisions — the fabric you buy, the tape you finish with, and how you stitch the two together.

Start With Fabric You Won't Regret

The most common beginner mistake is buying thin quilting cotton because the print is charming, then wondering why every triangle curls up like a crisp. Bunting spends its life hanging, which means gravity works on it constantly, and a little wind turns a flimsy triangle into a crumpled flag.

Medium-weight woven cloth — cotton canvas, duck cloth, cotton-linen blends, upholstery-weight cotton — holds a flat shape, keeps crisp points, and fades far more slowly in sunlight. It also takes a press beautifully, which matters more than you'd think once you're folding tape around thirty raw edges.

Match the cloth to where it will hang

• Indoor rooms, dry and shaded: quilting cotton, poplin, lightweight linen, or wool felt. This is where you can be led by the print, because nothing is trying to destroy it.
• Covered porch or summer party: cotton canvas, duck cloth, and cotton-linen blends. They resist sagging and stand up to a breeze without stretching.
• Genuinely outdoors, sun and rain: solution-dyed acrylic (awning fabric), oilcloth, marine-grade polyester, or ripstop nylon. These are woven and dyed to tolerate weather, and they wipe clean.

Whatever you choose, prewash and press it first. Cotton shrinks, and the sizing that makes new fabric feel crisp will wash out later and leave your triangles slightly smaller than the tape you sewed them into. A hot wash and a hot tumble dry before cutting removes the surprise. If you fall for a delicate novelty print, back it with a plain medium-weight cotton or a light fusible interfacing so the triangle behaves.

Aim for four to six fabrics in one set. Fewer looks considered; more looks like a jumble sale. Give one print or colour the lead role and let the others support it.

Cutting Triangles That Look Deliberate

A 10-inch-wide, 12-inch-deep triangle is a friendly standard — big enough to read from across a garden, small enough that you can fit five across a metre of fabric. Cut a template from card or template plastic and trace around it with a rotary cutter and ruler rather than scissors; your points will be sharper and your triangles will actually match.

The detail most people miss is grain. Line the top edge of each triangle up with the fabric's straight grain — running parallel to the selvedge — so the tape sits on stable cloth. If that top edge lands on the bias instead, it will stretch the moment you sew, and your neat row of triangles will go wavy.

The sides of each triangle will be exposed unless you deal with them. Three workable options: cut with pinking shears so the raw edge frays less, run a narrow zigzag along the two slanted edges, or cut two triangles and sew them right sides together, leaving the top open, then turn and press for a double-sided flag. The last option takes twice the fabric and twice the time, but it gives you a reversible set and hides every raw edge.

Bias Tape: The Finish That Makes It Reusable

Bias tape is cut on the diagonal, which gives it a slight stretch and lets it curve and drape without puckering. Double-fold bias tape is the right choice here because it's already folded into thirds, so it wraps both sides of your triangle in one pass and encloses the raw top edge completely. That enclosure is the whole reason reusable bunting doesn't unravel in storage.

For single-layer triangles, half-inch double-fold tape is the sweet spot — wide enough to grip the fabric, narrow enough not to swallow small flags. If you're using double-layered or heavy canvas triangles, go up to seven-eighths or one inch, because thick cloth eats the fold.

You can buy tape in a rainbow of colours, or make your own from a matching fabric: cut 2-inch strips at a 45-degree angle, join them with diagonal seams, press the seams open, then fold and press into shape. It's an extra hour of work and it makes the finished bunting look like it came from a shop rather than a sewing basket.

Allow roughly a foot of tape per triangle, plus about 30 inches for the two hanging tails.

Stitching It Together, Step by Step

1. Press every triangle flat and press the bias tape open so the creases are crisp. Folded tape that has been sitting in a packet holds its kinks, and those kinks show up in the final seam.
2. Slide the first triangle into the open fold of the tape, butting its top edge right against the centre crease. Pin through all the layers.
3. Leave a hanging tail roughly 18 inches long before the first triangle. This is what you'll tie around a hook or post.
4. Stitch along the lower edge of the tape, about an eighth of an inch in from the fold, with a 2.5 mm stitch length. A walking foot helps enormously if you're working with canvas or oilcloth.
5. Add the next triangle, spacing them one to two inches apart, and keep going. Don't backstitch between flags — one continuous seam is stronger and neater. Backstitch only at the two ends of the tape.
6. Check the back as you go. If the tape's rear fold has slipped past your stitching line, unpick that section now rather than later.
7. Press the finished length from the tape side, then trim every loose thread.

Thread choice matters outdoors. Polyester thread resists sunlight and moisture well; cotton thread can rot in damp storage, and nylon thread degrades in ultraviolet light over time. A fresh 80/12 or 90/14 needle will also save you from skipped stitches through folded tape.

Troubleshooting the Common Snags

• Points curling upward: the fabric is too light for the size of triangle. Shorter triangles curl less; interfacing helps too.
• Wrinkled tape: you're pulling it taut as it feeds. Let the machine move the fabric and guide with light hands only.
• Skipped stitches: blunt needle, wrong size, or sewing too fast through thick folds. Change the needle and slow down.
• Wavy finished row: the triangle tops were cut on the bias, or the spacing is uneven. Pin the whole row before sewing anything.
• Fraying after a wash: the raw side edges were left unfinished. Pink or zigzag them before the tape goes on.

Washing, Storing, and Getting Years Out of It

Wash bunting in a mesh laundry bag on a cool, gentle cycle, then hang it to dry. Keep it out of the tumble dryer, where heat shrinks cotton and presses in creases that are hard to shift. Iron on the reverse, or press the tape side through a thin cloth.

Store it flat or loosely coiled in a box rather than crumpled in a bag, and keep it somewhere dry — a damp shed will undo a season of careful sewing. If you plan to add matching flags for a future party, keep a small swatch of each fabric with a note of its name; hunting down a discontinued print two years later is a losing game.

One safety note worth repeating: fabric bunting is not flame resistant unless it's labelled as such. Keep it away from candles, heaters, and open flames, and don't string it at head height across a walkway where guests will catch it. Hang it high, tie it off properly, and it will be back out of the box for the next occasion.

Photo: rakhmat suwandi / Pexels