The basic method: fold, pin, and stitch

Sewing binding onto a blanket means wrapping a strip of fabric around the edge and stitching it down on both sides. The binding covers the raw edge of the blanket and finishes it neatly. Most people use double-fold binding, which is a strip folded in half lengthwise so both long edges are already folded inward — you buy it pre-made or fold your own fabric strip.

The process has three main steps: pin the binding to the front of the blanket, stitch it down, then fold it to the back and stitch it again. The whole job takes two to four hours depending on blanket size and your sewing speed. You will need a sewing machine, thread that matches your binding, pins, scissors, and an iron.

Key Takeaways

  • Double-fold binding comes pre-folded or you can fold a fabric strip yourself, and it wraps around the blanket edge to hide raw seams.
  • Pin the binding to the front of the blanket first, then machine-stitch it down with a straight stitch about 1/4 inch from the fold.
  • Fold the binding to the back of the blanket and pin it again, then stitch it down by hand or machine to finish the edge.
  • At corners, fold the binding at a 45-degree angle before wrapping around to avoid bunching and keep the corner sharp.
  • Press the binding with an iron after each step to keep it flat and make stitching easier.

Prepare your blanket and binding

Start by trimming the blanket edges so they are straight and even. Use a rotary cutter and ruler, or mark a line with chalk and cut with scissors. The blanket should be square or rectangular with no fraying or loose threads sticking out. If the blanket has already been washed, press it flat with an iron so the fabric lies smooth.

Measure the perimeter of the blanket — add up all four sides. Buy or cut binding that is at least 1 inch longer than that measurement. If you are making your own binding, cut fabric strips 2.5 inches wide, sew them end-to-end to reach the length you need, then press the strip in half lengthwise with wrong sides together. If you bought pre-made double-fold binding, unroll it and press it lightly to remove any creases from the package.

Attach binding to the front of the blanket

Open one fold of the binding so it lies flat. Place the blanket right-side up on your work surface. Align the raw edge of the binding with the raw edge of the blanket, starting at the middle of one side — not at a corner. Pin the binding in place every 3 to 4 inches, keeping the edge even.

Set your sewing machine to a straight stitch with a stitch length of 2.5 to 3. Thread the machine with thread that matches the binding. Sew along the blanket edge, stitching through the crease line of the binding (about 1/4 inch from the fold). Sew slowly and keep the edge of the presser foot aligned with the blanket edge. Stop stitching about 6 inches before you reach the starting point, then backstitch to lock the thread.

Overlap the end of the binding with the beginning by about 1 inch, trim the excess, and sew the overlap closed. Then finish stitching the last 6 inches to complete the front seam.

Handle corners without bunching

Corners are where binding often goes wrong — if you do not fold it correctly, the binding will bunch or pucker. When you reach a corner while stitching the front seam, stop the machine with the needle down about 1/4 inch before the corner. Lift the presser foot and rotate the blanket 45 degrees so the binding folds at an angle away from the corner.

Lower the presser foot and sew forward a few stitches to lock the fold, then rotate the blanket 45 degrees the other way so the binding now folds back toward the next side. Sew forward again to lock that fold. This creates a neat diagonal fold at the corner instead of a bulky bunch. Continue stitching along the next side.

When you fold the binding to the back of the blanket, the corner folds will naturally form a mitered corner — a diagonal seam that looks professional. Press each corner with an iron as you go to keep the folds sharp.

Fold binding to the back and stitch it down

Once the front seam is complete, fold the binding to the back of the blanket. The fold of the binding should now wrap around the edge and sit on the back side. Pin it in place every 3 to 4 inches, keeping the fold even and the binding smooth. Press the entire back with an iron to set the fold.

You can finish the back seam by hand or machine. For a machine finish, stitch from the back of the blanket along the inner fold of the binding, about 1/4 inch from the edge. This stitch will be hidden inside the binding fold. For a hand finish, use a ladder stitch or whip stitch to close the binding with thread that matches the blanket. Hand stitching takes longer but creates an invisible seam.

If you machine-stitch the back, use a thread color that matches the back of the blanket, not the binding, so any visible stitches blend in. Sew slowly and keep the needle aligned with the fold line. Stop and backstitch at the end to lock the thread.

Press and inspect the finished binding

Once both seams are complete, press the entire blanket with an iron on a low to medium heat setting. Press from the front first, then the back, to flatten the binding and set the stitches. The binding should lie flat and smooth with no wrinkles or puckers.

Check the corners to make sure they are sharp and the binding is even on both sides. Look along each edge to see if the binding is the same width all the way around — it should be about 1/2 inch wide on the front and back. If any stitches are loose or the binding is bunched in spots, you can hand-stitch those areas to tighten them up.

Common mistakes and how to avoid them

The most common mistake is stitching too close to the raw edge of the binding, which causes the binding to slip off the blanket edge during washing. Always stitch along the crease line — the fold — of the binding, not along the raw edge. This anchors the binding firmly to the blanket.

Another mistake is not pressing the binding before stitching. Wrinkles and loose folds make it hard to stitch straight and cause the binding to bunch. Press the binding flat after you pin it and before you sew. Press again after you fold it to the back.

Corners are the third trouble spot. If you try to sew straight around a corner without folding the binding at an angle, it will pucker. Take your time at corners, fold the binding at 45 degrees, and press each corner before moving to the next side.

Frequently Asked Questions

Can I use single-fold binding instead of double-fold?

Yes, but it takes more steps. Single-fold binding has only one fold, so you have to fold the raw edges yourself before pinning it to the blanket. Most people use double-fold because it is faster and the folds are already even. If you have single-fold on hand, fold each long edge inward 1/4 inch and press it before you start.

What thread color should I use?

Use thread that matches the binding for the front seam so the stitches are hidden. For the back seam, use thread that matches the back of the blanket. If the binding and blanket are the same color, one thread color works for both sides. Neutral colors like tan or gray work on most blankets if you do not have an exact match.

How do I fix a corner that came out bunched?

You can carefully cut out the bunched section with a seam ripper, re-fold the binding at the correct 45-degree angle, and re-stitch it. Or you can hand-stitch over the bunched area with small, tight stitches to flatten it. If the bunching is minor, pressing it hard with a hot iron sometimes flattens it enough to be invisible.

Do I have to hand-stitch the back or can I machine-stitch the whole thing?

You can machine-stitch both sides. The back seam will be visible from the back of the blanket, but if your thread matches the blanket color, it blends in. Hand stitching takes longer but creates a completely invisible seam. Choose based on how much time you have and whether the back of the blanket will be seen.

What happens if my binding is not long enough?

If you run short, sew the end of the binding to the beginning with a diagonal seam, trim the excess, and press the seam flat. This creates a join that is less noticeable than a straight seam. Measure carefully before you start so you have enough binding — it is easier than adding more later.