# 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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# plotOptions.gantt.borderWidth

The width of the border surrounding each column or bar. Defaults to `1` when there is room for a border, but to `0` when the columns are so dense that a border would cover the next column.

In styled mode, the stroke width can be set with the `.highcharts-point` rule.