Homebrew PCBs

I have a basic question about through-hole technology:

Are all 14 pin DIP's have the same footprint?   8 pin DIP's?
Or does it depend on the technology (CMOS, TTL, etc.)?    
(Assuming you don't need to route traces between adjacent
adjacent pins on the IC.)

I am guessing maybe 14 pin DIP's all have the same basic footprint as
do 8 pin DIP's.    What has your experience been?