alright mate it all depends on tile size, grain effect and whats got to be cut around and take in to account for the odd breakage and imperfections. The Norm is about 10% for cuts
if your unsure over order..(make sure tile shop take them back first)
any promlems tell the customer you got more to make sure you got all the same batch....
whats more they happy when thay get money back, that they thoght was gone..
:lol: