Quick fix: Most rowing out is caused by purl rows being looser than knit rows. Wrap your purl yarn more snugly around your index finger — just enough to feel light resistance — and hold the working yarn against the needle with your thumb as you bring it forward.
What you are seeing
Alternating light and dark bands of ridges in stockinette — the fabric looks banded or striped even in a single colour. The ridging is most visible in raking light and becomes more pronounced over several inches of fabric.
Why it happens
- Knit and purl tension are naturally different for most knitters — purling tends to be looser.
- The yarn path is longer when bringing the yarn forward for a purl, creating extra slack.
- Knit and purl use different hand and finger mechanics, making perfectly matched tension difficult.
Fix it now
- Rowing out is a technique issue — existing fabric cannot be fully corrected after the fact.
- Try Continental purling (picking rather than throwing): many knitters find it produces more even tension than English/throwing style.
- Or try combination knitting, where purls are worked through the back loop to compensate for the looser purl path.
- For your current piece: wet blocking will even out mild rowing out — soak, pin flat, and allow to dry fully.
- If rowing out is severe, re-knitting the affected section with adjusted technique is the only complete fix.
Prevent it next time
- Swatch in your planned yarn and stitch pattern before starting a project.
- Count rows per inch on a knit-row section vs a purl-row section — they should match.
- Experiment with Continental or combination purling until your rows per inch are consistent.