# stacking

Allowed values: normal, percent. Default: undefined.

Canonical: https://chart.syidax.com/docs/options/stacking/

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## Definition

| Item | Value |
| --- | --- |
| JavaScript property | `stacking` |
| HTML attribute | `stacking` |
| Type | `CartesianSeriesStackingMode` |
| Default | `undefined` |
| Allowed values | `normal`, `percent` |

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

- [CartesianSeriesStackingMode](https://chart.syidax.com/docs/types/CartesianSeriesStackingMode.md) — Type definition

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## Related documentation

A property with the same name may have different types and defaults across charts. When using a direct tag, follow that chart's documentation below.

- [Shared facade and direct tags](https://chart.syidax.com/docs/concepts.md)
- [sy-column-chart](https://chart.syidax.com/docs/components/column.md#property-stacking)
- [sy-bar-chart](https://chart.syidax.com/docs/components/bar.md#property-stacking)
- [sy-polar-chart](https://chart.syidax.com/docs/components/polar.md#property-stacking)