The ladder stitch closes holes invisibly from the inside
The ladder stitch (also called the invisible stitch or mattress stitch) closes small to medium holes so neatly that the seam nearly vanishes once you tie it off. The thread runs inside the fold of fabric on both sides of the hole, never crossing the opening itself, so there is nothing visible from the outside once you pull the thread tight.
This stitch works best on woven fabrics like cotton, linen, and blends—anything with a clear weave you can separate slightly. It is harder on knits because the fabric stretches and the thread can slip. The hole should be no larger than about 2 inches; anything bigger needs a patch underneath for strength.
You will need a needle, thread that matches your fabric, small scissors, and a seam ripper or tweezers to help you guide the needle through the fold. The whole repair takes 5 to 10 minutes once you thread the needle.
Key Takeaways
- The ladder stitch hides inside the fold of fabric on both sides of the hole, leaving no visible seam on the outside.
- Thread your needle and knot the end, then push the needle through the fold of one side of the hole to hide the knot inside the fabric.
- Alternate taking small stitches through the fold on one side of the hole, then the fold on the other side, keeping the thread loose until the end.
- Once the hole is closed, pull the thread tight to cinch the fabric together, then tie off and trim the thread short.
- This stitch works on woven fabrics up to about 2 inches; larger holes or knit fabrics need a patch sewn underneath for durability.
Thread your needle and hide the knot inside the fold
Cut an arm's length of thread (about 18 inches) and thread your needle. Tie a knot at the end. You want the knot hidden inside the fabric so it does not show on the outside.
Position the hole so the opening faces you. Pinch one edge of the hole between your thumb and finger to open up the fold of fabric along that edge. Push your needle through the fold (not through the hole itself) about a quarter-inch away from where the hole starts. Push it in one side of the fold and out the other, so the knot stays trapped inside the fold. Pull the thread snug but not tight—you will tighten it at the very end.
Now you have the thread coming out of the fold on one side of the hole. This is your starting point.
Stitch back and forth across the hole, staying inside the folds
Take a small stitch (about a quarter-inch long) directly across the hole into the fold on the opposite side. Push your needle into the fold, run it along inside the fold for a quarter-inch, and push it back out. You are stitching parallel to the edge of the hole, not across it.
Now go back to the first side. Push your needle into the fold you just came out of, run it along inside for a quarter-inch, and come back out. You are creating a ladder pattern: one stitch on the left fold, one stitch on the right fold, back and forth.
Keep your stitches small and even—about a quarter-inch each. The smaller and closer together your stitches, the stronger the repair. Work your way along the entire length of the hole. Do not pull the thread tight as you go; keep it loose and floppy so you have room to work.
Pull the thread tight to close the hole
Once you have stitched all the way across the hole, gently pull the thread. The two sides of the hole will start to come together. Keep pulling steadily until the hole closes completely and the fabric puckers slightly. The thread will disappear inside the folds as the fabric cinches.
If the hole does not close all the way, you may have skipped a spot or made your stitches too far apart. Push the needle back through the fold near the gap and take another small stitch to close it.
Tie off and trim the thread
Once the hole is closed, push your needle through the fold one more time to anchor the thread. Bring the needle out through the fold (not through the hole), then tie a small knot right at the fold. Push the needle back through the fold to hide the knot inside, then bring it out a half-inch away and pull gently to snap the thread. Trim any loose thread with scissors.
The repair should now be nearly invisible from the outside. Run your finger over it to make sure the hole is fully closed and the fabric lies flat. If you see puckering or the hole is not completely sealed, you can go back in with your needle and add a few more stitches in the gaps.
Common mistakes that make the stitch visible
The most common error is stitching through the hole itself instead of staying inside the folds. If your thread crosses the opening, it will be visible from the outside. Keep your needle inside the fold at all times—think of the fold as a tunnel you are running your thread through.
Another mistake is pulling the thread too tight as you go. This creates puckering and makes the repair obvious. Keep the thread loose and floppy until you have finished all your stitches, then pull tight once at the end.
Stitches that are too far apart or too long will leave gaps that do not close. Aim for stitches about a quarter-inch long, and space them close enough that you could not fit another stitch between them.
When to use a patch instead
If the hole is larger than 2 inches, the fabric is very thin or worn, or the hole is in a high-stress area like a seam, a patch sewn underneath will make the repair much stronger. Cut a patch from matching fabric about a half-inch larger than the hole on all sides. Pin it behind the hole, then use the ladder stitch to sew around the edge of the patch, stitching through all three layers (the two sides of the hole and the patch). This distributes the stress and prevents the hole from tearing open again.
For knit fabrics, a patch is also the better choice because the ladder stitch can slip on stretchy material. Sew the patch on with a whip stitch (similar to the ladder stitch but working through all layers) or a straightforward running stitch around the edge.
Frequently Asked Questions
Can I use the ladder stitch on a seam?
Yes, but only if the seam has split open and the fabric on both sides is intact. If the fabric itself is torn, you need a patch. For a split seam, use the ladder stitch to close the opening, then reinforce it with a line of stitching along the original seam line using a needle and thread or a sewing machine.
What thread color should I use?
Match the thread to your fabric as closely as possible. If you cannot find an exact match, choose a shade slightly darker rather than lighter—it will be less noticeable. Test the thread on a hidden part of the garment first if you are unsure.
Will the repair hold up to washing?
Yes, if your stitches are small, close together, and pulled tight. The ladder stitch is strong enough for everyday wear and washing. For extra durability on a high-stress area, add a patch underneath or reinforce the repair with a second line of stitching.
What if I cannot find the fold of the fabric?
Woven fabrics have a clear weave you can separate. Use a seam ripper or the tip of your needle to gently pry the weave open along the edge of the hole. Knit fabrics are trickier because they do not have a fold—for these, a patch is your better option, or use a whip stitch that goes through the edge of the hole rather than inside a fold.
Can I use this stitch on a button hole or tear in a seam?
A button hole is intentional and should not be closed. For a tear in a seam, the ladder stitch works well if the fabric itself is not damaged—just the seam has split. If the fabric is torn, reinforce with a patch sewn underneath before closing the seam with the ladder stitch.