Which Label is more aorrect?

[Najma]

Hello all,
I'm in charge of posting some labels in my school. I need to put a sign on the teachers' office door. Which one is more appropriate?

Teachers Office
Or
Teachers' Office

Thanks a lot.

 

[MrPedantic]

Hello Najma, welcome to the forum!

I would put Teachers' Office, if several teachers are to be found there.

Punctuation can look very unattractive, on signs; but if you omit the apostrophe, in the context of "teachers", people will never stop mentioning it.

Best wishes,

MrP