I'm putting down my first ceramic tile floor. I need to transition from 18 inch to 6 inch tile for part of my design.
I've been installing the 18 inch tile with 1/4 inch spacing for looks. I'd like to keep the same 1/4 inch of grout every third tile, basically making a a 3x3 set of these 6 inch tile act like one of the 18x18.
How do I do that? I'm sure it's just a matter of finding the right spacing.
Edit: true sizes at 5 13/16th and 17 13/16th.