Laid 10m2 of B&Q porcelain tiles thurs & fininshed friday. Alot were chipped on their edges, so had to watch what I was doing.
They were the softest porcelain tiles I've ever used. They cut like ceramic cheapo's. Got to sat though, I was working out of 3 boxes, and the size didn't change at all. The last time I did cheap porcelain, homebase, they varied from 1 to 1.5mm.
I laid some porcelain from a shop last year and they burn't out my mercrist cutter in the two weeks they were so hard. Thats the difference.