What you are seeing
The finished piece is longer than intended โ a sleeve too long, body too deep, or sock leg too tall. The fabric looks fine, just has too many rows.
Why it happens
- Row gauge is tighter than pattern โ more rows per inch means more length per repeat
- Miscounted rows
- Heavy yarn stretched by gravity over time
Fix it now
- Identify which row to shorten to. Count rows from the cast-on or from a pattern landmark.
- Snip one stitch in the row just above where you want to end. Unpick the yarn across that row โ this releases live stitches.
- Rip downward to remove the extra rows.
- Pick up the live stitches on a needle and bind off, or continue from there if adding length in a different direction.
Prevent it next time
- Check row gauge as well as stitch gauge โ both matter for length
- Measure against the actual body measurement as you knit rather than just counting rows