[Theme: Foxy] How can I get rid of side widget space?

I’m helping my father build a site for a house he’s trying to sell. Due to the nature of the site, we decided to delete the sidebar widgets, but the space the sidebar widgets once occupied is left blank, where as we’d prefer the content on the page itself expand right to fill the page.

https://parker-essenhouse.com/601/pictures-and-information/

Is there an easy way to fix this? A number or two I could quickly change in the css code?
(I’m pretty new to WordPress.)

I’m using a theme called Foxy from Elegant Themes.

Thanks!