Creating a Page with No Sidebar
Question:
I would like a page with no sidebar.
Answer:
1) Log into WordPress
2) Click on “Pages” -> “Add New”
3) Select the “No Sidebar” template from the Page Template drop-down on the right.

Optional: No Sidebar on a Page that already uses a Page Template
If you would like no sidebar on a page that already uses a page template such as the “Find Us” or “Contact” page – simply drag an empty text widget into the according sidebar area and leave it blank.
