Removing the sidebar from your template

1. Go to Dashboard.
2. Click on Layout of the blog for which you want to remove the sidebar.
3. Click on Edit HTML.
4. In the template code, search for #main-wrapper code, which will look like this:
#main-wrapper {
width: 410px;
float: $startSide;
word-wrap: break-word; /* fix for long text breaking sidebar float in IE */
overflow: hidden; /* fix for long non-text content breaking IE sidebar float */
}
5. Remove the entry width: 410px; and save the template by clicking SAVE TEMPLATE.
6. Voila! you are done.