Board Thread:Support Requests - Designing Your Wiki/@comment-4146635-20130624223048/@comment-2200849-20130625122155

Help:Customization policy is ambiguous on this one, though, ("Changes to fixed width, right sidebar" &rarr; "The fixed width and right sidebar are key elements of the Wikia look."). You might want to send in a message to Special:Contact/general so as to confirm it's indeed permissible.