It’s hard not to feel disheartened when you see uneven stitching because it really is visible. You might have one huge stitch and another so short you can barely see it, and if you drew your starting line with a fabric pen, the row will just seem to wander away from your guide. In early textile work, that one row of crooked stitching is far more than a mistake. It holds all the clues. You’ll notice your hand moving a certain way, where your needle enters the cloth, how hard you’re pulling your thread, and whether the textile sits as still as it might be.
It’s not just vision that impacts stitch spacing. Even if your hands remain steady, the cloth might be moving as you pull each needle. This can happen if it’s slippery, thin, stretchy, or woven loosely. If you’re pulling your thread too tightly, you might feel the cloth pucker a little. When you’re tired, you might begin to tilt your needle differently. The way you hold the textile in your hand also matters. When I teach, I ask students to mark a small square of tightly-woven cotton on a work surface to give a better idea of stitch spacing than the same piece of cotton that might be curling or slipping when they hold it up in the air.
You might mark one line on a sample fabric square using chalk or a fabric-friendly marker. Now try stitching along that line using running stitch, but do it without worrying if your stitches are even. When you’re done, lay the piece down and take a closer look at your row. Note where the stitch size begins to change. Are they getting longer toward the center of the row? Shorter near the end? Do your stitches tighten each time you pull them? Now you know what part of your stitching needs to be adjusted.
The way a row of uneven stitches changes can also tell you about the speed at which you’re working. As I often tell students, it’s easy to put the needle into a fabric before you take the time to see that you’ve already finished a stitch. When we rush the motion, we end up thinking the stitches should be spaced one way when they’re actually spaced another way. Slowing down doesn’t mean stopping at each stitch and wondering where your needle should enter the cloth next; it just means allowing your eye to see the next spot on the fabric, and allowing your fingers to pull your thread a bit so that the stitch sits flat on the fabric instead of pulling it into tight ridges.
A sense of your thread tension can have as much to do with the length of your stitches as your eyesight. Too much pull on your thread can cause your stitches to appear even, while also puckering up your cloth. Conversely, too loose thread may create uneven-looking stitches, even if they’re the same distance apart from one another. As you pull on each stitch, make sure to run a fingertip gently over your textile to see that it is mostly flat on the fabric, and that your thread doesn’t tug the fabric down into any ridges. That tactile check gives you information that you won’t see if you only measure your stitches with a ruler.
You can also compare two short sample rows at a time instead of judging one long row. You’ll want to stitch one row at a typical pace, and a second row that’s slightly more deliberate. In the second row, you may be able to watch your needle, check the size of your stitches, and how tight you’re pulling your thread. Neither row has to be perfect. You can just try to improve upon one of your observations from your first row, such as reducing any puckers, making sure the stitches near the edges are more consistent, or stitching closer along your guide mark. Small pieces are best for this so you’re not stressing over whether you’ve sewn an object that can actually be worn.
The goal of uneven stitch spacing is to notice how it can be improved in your next attempt. Maybe you should hold your cloth tighter to the table. Maybe you’d like a longer guide line or a different kind of stitch guide. Maybe you should pull a bit less on your thread. Perhaps you should try stitching shorter rows until you get into the rhythm of the stitches. Keep your first sample and compare it to a later stitch to see how the difference between the two is different than the difference between just a few neat looking stitches.