Quick fix: Wet block the piece by soaking for 20 minutes, then pin it flat on blocking mats and leave to dry completely. For a permanent fix, add at least 4 rows of garter stitch, seed stitch, or ribbing at every edge.
What you are seeing
The sides and bottom or top edges of the stockinette piece roll inward. The fabric forms a tube or scroll at the edges and will not lie flat even when pressed. This happens in plain stockinette regardless of yarn or needle size.
Why it happens
- Stockinette curls because of the physical structure of the stitch — knit stitches on the RS create more tension than purl stitches on the WS.
- This imbalance causes the fabric to roll toward the purl side at the top and bottom, and toward the knit side at the sides.
- This is normal and expected in pure stockinette — it is not a mistake.
Fix it now
- Soak the piece in cool water for 20 minutes.
- Lift out without wringing and press between two towels to remove excess water.
- Pin firmly to blocking mats in the correct dimensions, stretching the edges flat.
- Allow to dry fully — typically 12-24 hours depending on yarn weight.
- For future projects: add at least 4 rows of garter stitch (knit every row), seed stitch, or ribbing at all edges before working stockinette.
- Alternatively, pick up and knit a garter border along all edges after finishing the main piece.
Prevent it next time
- Never cast on a flat stockinette project without planning a non-curling edge treatment.
- Add at least a 4-stitch garter selvedge on each side of flat stockinette panels.
- If working in the round, curling at the cast-on edge can be managed with a garter or seed stitch border for the first few rounds.