[Solved]-Highcharts: Remove space between plot border and actual chart-Highcharts

With option "tickmarkplacement" set to "on", the xAxis "startontick" option might help you:

xAxis: {
    startOnTick: false,
    tickmarkplacement:"on",
    ...

see this jsfiddle, forked from the Highcharts API documentation

The best way to remove paddings is to add pointPlacement: 'on'

plotOptions: {
    areaspline: {           
        pointPlacement: 'on'
    }       
}

You should use minPadding/maxPadding parameters but it doens't work with categories. So I suggest to remove categoreis, use min value and tickInterval

http://jsfiddle.net/7JAcN/3/ http://api.highcharts.com/highcharts#xAxis.minPadding

xAxis: {
        allowDecimals:false,
        minPadding:0,
        maxPadding:0,
        /*categories: [
            'Thu 2/14',
            'Fri 2/15',
            'Sat 2/16',
            'Sun 2/17',
            'Mon 2/18',
            'Tue 2/19',
            'Wed 2/20'
        ],*/
        labels: {
            staggerLines: 2
        },
        tickmarkPlacement: 'on',
    },