Or more precisely, meaning where one dimension is longer than 60 cm (65 cm exactly would be ideal).
Eg., the overall dimensions could be something like 30 x 65 cm, or 35 x 70 cm, or 50 x 80 cm, you get the idea, as long as one dimension is about 65 cm or more.
Please let me know if you know of a tile place that has these larger tiles.
Oh, to the mods:
I put this into Kitchen cnr as I would use them in the kitchen ... couldn't see which other Forum to use, but please move it as you see appropriate.