Sometimes you want a page or set of pages to look different from the rest of your site.
You can do this easily with Page Templates.
Create a New Page Template
You can either duplicate the page.php or another existing layout in your theme and modify it, or start from scratch by creating a new .php file. (Many themes have multiple page templates already)
Either way, you will need to put this code in the beginning of the new file.
Template Name: Put-The-Template-Name-Here
Now your new template will show up in this section as your create or edit your pages.