Why Is My Granny Square Wavy, Curled or Not Square?
A granny square ruffles when its corners have too many chains, cups when it has too few, twists when you never turn, and goes lopsided when a corner is skipped. How to spot each, plus the exact corner counts.
Pattern at a glance
US terms- Skill level
- Beginner
- Time
- 10 minutes
You'll need
- Your squares
- Hook one size up and down
- Pins for blocking
In this post
A granny square goes wavy when the corners have too many chains or your tension is loose, and cups when the corners are too tight. It twists into a pinwheel when you work every round in the same direction without turning, and turns lopsided when a corner is missed. Check the corners first: most patterns use ch 2 (or ch 1 for tight squares) between the two clusters in each corner.
The rest of this post is just below — free, as always.
Diagnose your square
| Problem | Cause | Fix |
|---|---|---|
| Wavy edges | Corner chains too long, or loose tension | Ch 1 in corners, or go down a hook size |
| Cups up in the middle | Tight tension or no chain in corners | Ch 2 in corners, or go up a hook size |
| Twisted / pinwheel | Never turning between rounds | Turn after every round |
| Lopsided or triangle | A corner skipped, or extra clusters on one side | Count clusters per side |
| Squares different sizes | Tension changing between sessions | Block all squares to one size |
Fix it
- Count each side: After round n, every side should have n clusters of 3 dc (counting the corner halves as one). A side with more or fewer is where it went wrong.
- Check the corners: (3 dc, ch 2, 3 dc) in every corner space. If waves persist, change to ch 1.
- Turn every round: After joining, turn the square over and work the next round in the opposite direction. The twist disappears.
- Watch the side spaces: Between clusters along a side, work ch 1 (not ch 2) and 3 dc in each space.
- Block: Pin each square to the same measured size, mist and let dry — essential before joining.
Starting from scratch? The full step-by-step is in granny square for beginners. Making a blanket? See why blankets curve and the Halloween granny square for colour ideas.
Common questions
Why does my granny square twist?
Working every round in the same direction makes the clusters lean, so the square spirals. Turn the square over after each round.
Should granny square corners be ch 1, 2 or 3?
Ch 2 is standard. Use ch 1 if your squares ruffle, ch 3 for a lacier, sharper corner with loose-tension yarn.
Can I fix wavy granny squares by blocking?
Slightly wavy squares block flat. Strongly ruffled ones have too many stitches and need the corners re-worked.
Ch 1 or ch 2 corners — which works for you? 🟨
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