# 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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# xAxis.minorTickInterval

Specific tick interval in axis units for the minor ticks. On a linear axis, if `"auto"`, the minor tick interval is calculated as a fifth of the tickInterval. If `undefined`, minor ticks are not shown.

On logarithmic axes, the unit is the power of the value. For example, setting the minorTickInterval to 1 puts one tick on each of 0.1, 1, 10, 100 etc. Setting the minorTickInterval to 0.1 produces 9 ticks between 1 and 10, 10 and 100 etc.

If user settings dictate minor ticks to become too dense, they don't make sense, and will be ignored to prevent performance problems.