Content width on Home page

Hi, We wanted to do more than what the Promotion Headline allows so, to get around it's limitations, I used the TablePress plugin to create a replacement band across the top of the main content area below the banner. On a test page this looked fine. However, on the Home page the main content area is restrained to a more narrow space, constricting the table. I have tried all of the avalable layout options and nothing changes. The main site is: home page. How can I make the main content area on the Home page display like the secondary pages? Thank you