Walls, how thick?

So, I am making a Half-Life 2 style apartment, and I can’t really find a good wall thickness. How thick are your walls normally?

8 Units or 16 Units wide, but this doesn’t require it’s own thread, you should of posted in the Question thread…

Theres a questions thread?! Well, this thread is obsolete then!

http://www.facepunch.com/threads/972022-Mapping-Question-Mega-Thread?highlight= :v: