Steps for changing the page layout
You can change a page’s Page Layout after you have
logged in and are editing the page (click the Edit icon or click on the Site Actions dropdown menu and select Edit Page).
In the ribbon, click on the
Page tab and click the
Page Layout dropdown.
Select the layout you want and wait for the page to refresh.
You can learn more about the different page layout options here. When you are done editing the page, don’t forget to
Save & Close and
Check In.