# [Diagnose cupping and ruffles](https://threadcabin.com/explore/215/diagnose-cupping-and-ruffles)

> Too little circumference can cup; excess circumference can ruffle. First check counts, stitch height and tension against the intended construction.

- Canonical page: https://threadcabin.com/explore/215/diagnose-cupping-and-ruffles
- Language: en
- Published: 2026-09-25T17:26:33.9712742+00:00
- Updated: 2026-09-25T17:26:39.0197519+00:00
- Craft: Crochet
- Primary image: [Illustration: Three small crocheted circles: one flat, one visibly cupped and one ruffled, showing the different fabric outcomes.](https://threadcabin.com/images/explore/focused/crochet-circle.jpg)

Too little circumference can cup; excess circumference can ruffle. First check counts, stitch height and tension against the intended construction.

## Before you start

Stop and record the last correct reference point. Support loose loops or damaged ground before removing anything, and reproduce the fault on a spare sample if possible.

## Try this example

Stop at the first round that no longer lies flat. Compare its six sectors with the last flat round; undo that round and change only the identified cause.

## Check your result

- Compare the repaired area with an undamaged neighbor after relaxing or finishing the sample. Recount the boundary before continuing beyond the repair.
- A repair may remain visible. If the foundation is weak, reinforcing or replacing a section can be more reliable than hiding the surface fault.

## Sources

- [www.garnstudio.com: lessons.php](https://www.garnstudio.com/lessons.php?cid=19)
- [media.craftyarncouncil.com: CYC_CIP_Crochet_Program_2017.pdf](https://media.craftyarncouncil.com/files/CIP/CYC_CIP_Crochet_Program_2017.pdf)

[Browse editable craft templates](/crafts?craft=crochet)

[Report a correction](/corrections).

## Sources and provenance

- [Plan a flat crochet circle](https://threadcabin.com/explore/214/plan-a-flat-crochet-circle)
- [Find unintended stitch-height changes](https://threadcabin.com/explore/251/find-unintended-stitch-height-changes)
- [Crochet loop placement changes texture and movement](https://threadcabin.com/explore/12/crochet-loop-placement-changes-texture-and-movement)