Full width not being full width

Hi!

I’ve been trying to make a full width page of the authors of our blog and it seems to not work.

It is a different page within our blog and both the site and the added row from PageBuilder setup have been set to “Full Width”. I’d like the site to have three equal size collums that fill the space nicely, but now it is either 3 narrow collums (as of right now: http://mindthemotion.net/kirjoittajat/) or then if I choose the layout from “Edit row” to be “Full Width Stretched” the firs collumn will be only half seen as it stays underneath the left hand side panel.
This page is the only one I’d want to use these settings.

Theme is still the original Twenty Fourteen theme – as you can see… ;)

URL: http://mindthemotion.net/kirjoittajat/