The ladder stitch makes the repair nearly invisible from the outside
The ladder stitch (also called the invisible stitch or mattress stitch) closes a hole so the seam runs along the fold of the fabric rather than across the opening. The thread stays hidden inside the fold, and when you pull it tight, the two sides of the hole draw together and seal. The repair is nearly invisible on both sides if you match your thread color to the fabric.
This stitch works best on seams that have already split open — the kind where the two edges of fabric are still aligned and you're straightforward re-joining them. It's less effective on holes torn through the middle of a garment, where there's no existing seam line to follow. For those, a patch or a different repair method works better.
The ladder stitch requires a needle, thread that matches your fabric, and a small amount of patience. Most repairs take 10 to 20 minutes depending on the hole size. You don't need special tools or experience.
Key Takeaways
- Thread your needle and knot the end, then bring it up through the fold of one side of the hole so the knot stays hidden inside the fabric.
- Push the needle straight across into the fold of the opposite side, then run it along inside the fold for about a quarter inch before bringing it back out.
- Return to the first side and repeat the same motion — across into the fold, along inside it, and back out — working your way down the entire hole.
- Every few stitches, pull the thread tight to draw the two sides together and close the gap before continuing.
- Matching thread color to your fabric is the single most important factor in making the repair invisible.
Thread color matters more than stitch perfection
A mismatched thread color will show even if your stitches are perfectly placed. A slightly uneven stitch in matching thread will barely be noticeable. Buy thread in the exact shade of your garment — hold it up to natural light in the store if possible, or take a small scrap of the fabric with you.
If you can't find an exact match, choose a shade slightly darker rather than lighter. Dark thread recedes visually, while light thread stands out against darker fabric. For patterned fabrics, match the dominant color or the color of the thread already used in the seam.
How to thread and start the stitch
Cut about 18 inches of thread and pull it through the needle eye. Tie a knot at the end. Bring the needle up through the fold of fabric on one side of the hole — not through the opening itself, but through the fold of the seam allowance. The knot will catch inside the fold and stay hidden.
Position yourself so you're looking at the hole from the outside of the garment. The two edges of the hole should be facing you, with the folds of fabric on either side. Your needle should emerge from the fold on the left side of the hole, about a quarter inch below where the hole begins.
The crossing motion: back and forth across the hole
Push the needle straight across the opening into the fold on the opposite (right) side. Don't go through the opening — aim for the fold itself. Once the needle is inside that fold, run it along inside the fold for about a quarter inch, staying parallel to the edge of the fabric. Bring the needle back out through the fold.
Now push the needle back across the opening into the fold on the left side again. Run it along inside that fold for another quarter inch and bring it back out. You're creating a ladder pattern: the thread crosses the opening on the outside, then runs hidden inside each fold before crossing back.
The crossing part — the thread that goes straight across the hole — is what actually closes the gap. The hidden part inside the fold is what keeps the stitch invisible. As long as you stay inside the fold on both sides, the thread won't show on the outside of the garment.
Tightening as you go keeps the hole from gaping
After every three or four crosses, stop and gently pull the thread tight. You'll see the two sides of the hole draw together and the gap close. Don't yank — a steady, firm pull is enough. If you pull too hard, the thread may break or the fabric may pucker.
Tightening frequently also lets you check your progress and make sure the hole is actually closing. If you wait until the end to pull tight, you might discover the edges aren't aligned properly and you'll have to redo stitches.
Finishing the repair and securing the thread
When you reach the end of the hole, make one final tight pull on the thread to close any remaining gap. Bring the needle out through the fold on whichever side you're on. Make two or three small stitches in place — pushing the needle in and out of the fold without crossing the hole — to anchor the thread. Tie a knot inside the fold, then run the needle along inside the fold for an inch or so before bringing it out and trimming the thread close to the fabric.
The knot and the final stitches will all stay hidden inside the fold. From the outside, you should see only a thin line where the hole was, with no visible thread.
When the ladder stitch won't work
The ladder stitch only works on seams where the two edges of the hole are still aligned and can be drawn together. If the hole is in the middle of a panel of fabric with no seam nearby, or if the fabric is torn in a way that leaves ragged or misaligned edges, you'll need a different approach.
For holes in the middle of fabric, a small patch sewn on the inside of the garment is more durable than trying to close the hole itself. For large tears or heavily damaged areas, a patch on the outside (or a combination of inside and outside patches) may be the only option that will hold.
Frequently Asked Questions
What if my thread keeps showing through the fold?
You're likely pushing the needle through the fabric itself rather than staying inside the fold. The fold is the bent edge of the seam allowance — aim for the very inside of that bend, not the flat surface of the fabric. Practice on a scrap of fabric first if you're unsure.
Can I use this stitch on knit fabrics?
Yes, but knits are more delicate and the thread can pull through the fabric more easily. Use a smaller needle and take shorter stitches — about an eighth inch instead of a quarter inch. Pull the thread gently rather than firmly, and test on a scrap first if the garment is expensive or irreplaceable.
How do I match thread color if the fabric is multicolored?
Match the color of the thread that's already in the seam of that garment, or match the dominant color in the pattern. If the seam has no visible thread, choose the color that appears most frequently in the fabric. A thread that blends with the background is better than one that matches a small accent color.
What if the hole is too large for the ladder stitch?
Holes larger than about two inches are difficult to close invisibly with the ladder stitch alone because the fabric edges may not align properly under tension. For larger holes, consider a patch on the inside of the garment, or use the ladder stitch to close the hole partially and then reinforce it with a patch for durability.
Do I need to wash the garment before I sew?
It's not necessary, but clean fabric is easier to work with and your stitches will be more visible as you work. If the garment is visibly dirty, a quick wash won't hurt. Let it dry completely before you begin sewing.