The basic stitch that holds fabric together
The running stitch is the simplest way to sew two pieces of fabric together by hand. You thread a needle, push it through both layers of fabric in a straight line, and repeat until the seam is closed. The needle goes in and out of the fabric in small, even dashes—typically about 1/8 inch long—creating a line that holds the two pieces permanently.
Before you start, you need three things: a needle that fits comfortably in your hand, thread that matches your fabric or the look you want, and two pieces of fabric lined up and ready to join. Most hand sewing happens with the needle and thread you can buy at any fabric store or drugstore. The running stitch works for repairs, seams on lightweight fabric, and decorative stitching where the seam shows on purpose.
Key Takeaways
- Thread your needle, tie a knot at the end, and start from inside the seam so the knot stays hidden between the layers.
- Push the needle straight through both pieces of fabric in small, even stitches about 1/8 inch long, keeping the line as straight as you can.
- The running stitch is fastest but weaker than a backstitch, which you use for seams that need to hold under stress like bag handles or clothing hems.
- Finish by bringing the needle to the inside of the seam, making a small loop, and pushing the needle through the loop twice to lock the thread.
- Practice on scrap fabric first so your stitches are even and you build the muscle memory before working on something you care about.
Preparing the fabric and threading the needle
Start by laying your two pieces of fabric on a flat surface with the sides you want to show facing outward and the sides you want hidden facing each other. This is called right sides together. Line up the edges you want to join so they match exactly. If the edges are uneven, trim them with scissors first.
Thread your needle by pushing one end of the thread through the eye—the small hole at the top of the needle. Pull the thread through until you have roughly equal lengths on both sides, then bring both ends together and tie them in a single knot at the end. This knot will catch on the fabric and keep the thread from pulling all the way through when you start stitching.
If you are having trouble threading the needle, wet the end of the thread slightly and pinch it to a point, or buy a needle threader—a small wire tool that makes the job easier. For most hand sewing, use a needle size between 7 and 10, which is small enough to make neat stitches but large enough to hold comfortably.
Making the running stitch step by step
Push the needle through both layers of fabric from the inside of the seam—the side where the fabric edges meet. The knot will stop the needle from going all the way through, leaving the knot hidden between the layers. This is your starting point.
Now push the needle straight up through both layers about 1/8 inch away from where you started. Pull the thread snug but not tight—tight enough that the fabric lies flat, not so tight that it puckers. Push the needle back down through both layers about 1/8 inch further along the seam. Repeat this in-and-out motion in a straight line along the edge where the two pieces meet.
Keep your stitches as even as you can. Uneven stitches are weaker and look messy, but they still hold. If you are sewing a seam that will show—like decorative stitching on the outside of a pillow—take time to make the stitches match in size and spacing. If the seam will be hidden inside a finished project, speed matters more than perfection.
The backstitch for seams that need to hold tight
The backstitch is stronger than the running stitch and is the right choice for seams that will take stress, like the handles on a tote bag, the hem of pants, or any seam on clothing. It takes longer but creates a much tighter line that resists tearing.
Start the same way: thread the needle, tie a knot, and push through from the inside of the seam. Bring the needle up through both layers about 1/8 inch forward. Instead of going down ahead of that point, push the needle back down through the hole you just came out of—going backward along the seam. Then bring the needle up again about 1/8 inch ahead of where you went down, and repeat. Each new stitch overlaps the one before it, creating a solid line.
The backstitch takes about twice as long as the running stitch but holds much better. Use it whenever the seam will be under tension or when you are repairing something that failed before.
Finishing and knotting off the thread
When you reach the end of the seam, bring the needle to the inside—the hidden side where the fabric edges meet. Make a small loop with the thread and push the needle through the loop. Pull snug. Repeat this one more time in the same spot to lock the knot in place. This double loop keeps the thread from unraveling even if one stitch breaks.
Trim the thread close to the fabric with scissors. If you are using the running stitch on a seam that will show, you can finish by tying the knot on the inside and trimming. If the seam is decorative and meant to show, you might leave the thread ends visible as part of the design, or trim them flush for a clean look.
Common mistakes and how to avoid them
The most common mistake is pulling the thread too tight, which causes the fabric to pucker and bunch. The thread should be snug enough that the seam lies flat, but loose enough that you can see the fabric is relaxed. If you notice puckering, loosen your grip on the thread as you pull.
Another mistake is making stitches that are too long or uneven. Stitches longer than 1/4 inch are weaker and look sloppy. Stitches that vary wildly in size are harder to follow in a straight line and look unfinished. Practice on scrap fabric to build a feel for the right stitch length before working on a project that matters.
Skipping the knot at the start or finish is a third common error. Without a knot, the thread can pull free and your entire seam can unravel. Always tie a knot at both ends, and make the finishing knot a double loop so it holds even under stress.
When to call in a sewing machine instead
Hand sewing is right for small repairs, decorative stitching, and projects where you do not have access to a machine. But if you are sewing a long seam, making clothing, or joining heavy fabric like canvas or denim, a sewing machine will save you hours and create a stronger, more even seam. Hand stitching on heavy fabric is slow and hard on your hands.
If you find yourself hand-sewing the same type of project over and over, it may be worth learning to use a sewing machine. Many libraries, community centers, and fabric stores offer free or low-cost classes. For one-time repairs or small projects, hand sewing with a running stitch or backstitch is reliable and requires no equipment beyond a needle and thread.
Frequently Asked Questions
How do I keep my stitches in a straight line?
Mark a light pencil line along the seam before you start, or use a ruler to guide your eye. Some people use a running stitch guide—a small plastic tool that slides over the needle—but a pencil line works just as well. The more you practice, the straighter your stitches become without any guide.
What kind of thread should I use?
All-purpose thread from any fabric or drugstore works for most hand sewing. Match the color to your fabric or choose a neutral shade like gray or tan. Thicker thread is easier to see and work with if you are a beginner, but it creates thicker, more visible stitches. Thinner thread blends in better but is harder to handle.
Can I sew two pieces of fabric together without turning them inside out first?
Yes, but the seam will show on the outside. This is called a topstitch and is often done on purpose for decoration or when the seam is meant to be visible. If you want the seam hidden inside the finished project, sew with right sides together, then turn the whole thing inside out through an opening you leave unsewn.
How tight should I pull the thread?
Pull just tight enough that the seam lies flat and the two pieces of fabric stay together. If the fabric puckers or bunches, you are pulling too hard. If the seam feels loose or wobbly, pull a little tighter. It takes practice to find the right tension, so start on scrap fabric.
What do I do if my thread tangles or knots up?
Stop and gently pull the thread straight to untangle it. If a knot forms in the middle of the seam, cut the thread, tie a new knot, and start again from that spot. Tangles usually happen when you pull too hard or when the thread is too long—keep your thread to about 18 inches for easier handling.