# Welcome to the Highcharts Gantt JS (gantt) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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# series.xrange.pointWidth

A pixel value specifying a fixed width for each column or bar point. When set to `undefined`, the width is calculated from the `pointPadding` and `groupPadding`. The width effects the dimension that is not based on the point value. For column series it is the horizontal length and for bar series it is the vertical length.