2.5-3mm height difference between tiles, easier solution

[swilli88]

I am putting a very narrow border tile (40mm strips off a white tile) around patterned tiles in an understairs wc floor. The border tile (as was the only one we could get) is about 2-3mm taller than the primary tile. I want to reduce the difference to more or less seamless.

I was thinking the easiest solution is to be more generous with the tile adhesive on the pattern tiles in the middle
And also be a bit more conservative with adhesive under the border tiles, or just use smaller trowel with border tiles.

Is that the best way to go?

the border tiles are only 40mm wide so will likely never in their lifetime bear weight as it would be almost impossible to stand on them

 

[JaimieH]

What size are your floor tiles? If you use a 20mm u-notch or 12mm square notch trowel and back skim each tile you'll end up with about 4mm compressed adhesive under them anyway so you should be able to get rid of the extra 2-3mm when it comes to the border tiles.