Zoo theme – full width page

I’ve set up the zoo theme and have been able to remove the sidebar. Now I can’t seem to be able to make the text full width (using the space of the “not there anymore” sidebar). I’ve look around on the forum. A lot of info are going on but so far none of them have worked (either that or I can’t manage to make them work).

Any help?

P.S. I’m working on a child theme.