Just so I'm totally sure, thats 16 x 16 x 16 cube?

I'm going to be making several large things such as dinosaurs and mammoths, something like this but I heard there was a limit in Minecraft. I'm doing these for a resource pack, so I'll need to know the limits before I get started. I heard somewhere It's 3 x 3 but that seems way too small, I know I ...

Thank you.

I remembered that I have cubik, but two computers later I definitely don't have it installed. I can log into the bdcraft site (where I initially bought and downloaded it), but I couldn't log into the new cubik site (which is where it wants me to download it now). I found my ancient email that has my ...