dimensions

I was looking at the small office space in the map itemtest to borrow some decoration and texturing ideas, and upon noticing the door that led to the office space I realized that I could not find the size of the door anywhere. How big is an average door in TF2? Does anyone have a good...

I have seen a few post about this topic but no one ever gives a definitive answer. What are the dimensions of all the koth maps? Corridors, courtyard, and sight lines? Please help me out so I can finish my first koth map with some confidence that I wasn't a total idiot.