Blank Page with no header, footer, sidebar or widgets

I’m trying to migrate this calculator (https://ari.xsanisty.com/buy_vs_rent/) to my site at lifelaidout.com. However, the way the calculator was designed, it looks like it would be best with no header, footer, sidebar, menus, or widgets – basically a blank page.

I’ve tried various pieces of code to create a blank page, but have been unsuccessful. Any help would be much appreciated.

Thanks!