hi, it has been suggested to me that on a new kitchen fit you tile around and after the kitchen units have been fitted. my concern with this is - should the kitchen units ever change then it would have to be near enough the same as what came out. Also, if there any discrepencies in the floor, its better to sort it out before its full of units! I am assuming the tiles would last longer than the kitchen units, although i guess they would last/be bored of about the same time? Cheers!