Arrows on back of porcelain tiles

[Al@Lifetiles]

I've found (on 60x60 in particular) that the tiles have a very slight curve into the corners. I always thought that this happened in production either by pressing or firing in a kiln.
if you lay the tiles with arrows all facing the same way then they've all been pressed/fired in same direction as well. This seems to help with any slight lipping that would occur if they were layed randomly?

 

[Dave H]

Hi Al, yes I've found that to, and agree keeping tiles in same direction helps

 

[Rizzle from the Portizzle]

this sounds like a good answer. who told you this ray.
doesnt it mean though that you may need to allow for more wastage than normal and have to ask if there are arrows on the back before you decide how many sq mts you need .also have to mark every off cut you have left over where you have already used part of tile with arrow on it!!
i had this recently on a big floor and we certainly used more than normal because we had arrows in same direction

have been to many tile factoreys watched the glaze lines and fast fire kilns you can see how the glaze dries on the tiles from front to back. and you do need to allow exstra tiles