/diy/ - Do It Yourself

Are Pis standardized somehow?

I'm looking into building something like pic related, but deeper and with proper ventilation. Now do follow the "classic" Pis (f.e. raspberry pi 3 B) some kind of size standard that i could predrill all holes? I know Raspberry has the same holes for their generations, but I'm not sure how that goes for the competition, if i some day decide to put an ODroid within there. Maybe it's a dumb question on how to google things, but i'm only getting some useless results redirecting to the Raspberry series..