

Here's an update in case anybody was interested in the question of tile square size vs base size. - TLDR: I'm sticking with the normal size.
I double checked and found that most of my fantasy minis were actually on 25mm or 28mm bases, and so I printed a tile at normal size for reference
Goblin - 25mm
Barbarian - 28mm
Chaos Warrior - 32mm
Orc Brute - 40mm
Stone Troll- 50mm
32mm bases aren't going to be a problem at all, and the roleplay book already talks about what to do with larger based minis, (which are mostly at higher levels anyway) .
With that in mind I'm just going to stick to the original size for the board tiles