B&Q 600x600mm porcelain

[barneyrubbles]

Good evening everyone
Has anyone had the joys of laying B&Q 600x600mm porcelain tiles?
After reading various threads on the random sizes of B&Q tiles, what is the best grout size for these tiles?

[grumpygrouter]

What substrate you laying them on?

[diamondtiling]

A hammer.............

oh grout? sorry misread there, flexy grout will do in a colour of your choice.

[doug boardley]

am I right in assuming they're floor tiles (going down on a floor) barney?, if so I'd go about 5mm joints, that way if they're a couple of millis out you can maybe get away with it

[hillhead]

10mm.lol.no only joking.check a few of them for sizes particulary from different boxes.if within one or 2 mil then id go with 3mm or so.they look nicer close ie 2 mm.

[barneyrubbles]

Many thanks for the replies, I like the idea with the hammer, wont have to worry about straight lines! I have got 30 sq metres to lay on a screed floor, have not seen the full floor yet, i find that out tomorrow when i strip the lino out,i guess i will find a few horrors.I had in my own mind to go 4mm but i think these tile have butt edges to them, sharp corners? and goner use bal 3-20mm grout