I see, thanks for the replies 
. Do you guys have any examples of how the UV’s of a modular floor or wall model should look for reference? This is how mine look for example:
I get seams with this, of course I allowed blender to make the UV itself automatically. I’m thinking though, I want each side of the floor to have its own UV map occupying the entire space of their own map. Does that make more sense for seamless modular walls and floors?