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

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

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# yAxis.minRange

The minimum range to display on this axis. The entire axis will not be allowed to span over a smaller interval than this. For example, for a datetime axis the main unit is milliseconds. If minRange is set to 3600000, you can't zoom in more than to one hour.

The default minRange for the x axis is five times the smallest interval between any of the data points.

On a logarithmic axis, the unit for the minimum range is the power. So a minRange of 1 means that the axis can be zoomed to 10-100, 100-1000, 1000-10000 etc.

Note: The `minPadding`, `maxPadding`, `startOnTick` and `endOnTick` settings also affect how the extremes of the axis are computed.