By default when you select the boxed layout for the Total theme you notice it has a margin around the boxed container. This margin can be changed or removed easily via the Customizer. Simply go to Appearance > Customize > Layout > General to alter this value.
![total-boxed-layout-margin](https://totalwptheme.com/docs/wp-content/uploads/sites/51/2016/01/total-boxed-layout-margin.png)