Hi all what is allowable tollerance on bowed tiles ?
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6Likes Hi all what is allowable tollerance on bowed tiles ?



If the wall is flat - none.
If your tiling around a curve - the greater the bow the better.
A curved tile is useable with a stacked fixing design, but aesthetically it is still going to show up on a flat wall.
I'am not aware of a British Standard for bowed tiles, but IMHO if its noticeable its binned.
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Take them back to the shop not fit for purpose..
"Experience is simply the name we give our mistakes"


hello northstar ,have you fitted these yet
can i mention the tiles and the shop ?


IMO no amount of bow is acceptable and should be returned as unfit for purpose... Luckily I've never had an issue with bowed tiles.
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"The early bird catches the worm.... but it's the second mouse that gets the cheese"


wouldnt think so northstar,if you have fitted them its your responsibility to check before fixing the quality of the product
i have come across 1 or 2 tiles in the past that have had slight bows...mostly 600s,they were expensive too
if you havent fitted these then there is no reason to name and shame a shop just take them back for a refund


hmm,not sure about this its allowable comment....personally why would anyone want lippage on tiles just because thats how they were supplied
unfortunate as it is and difficult even though the customer said carry on you should have stopped and said you were not happy fixing them
customers can be fickle and change there minds that leaves you wide open mate


any pics of the bowed tile
no pics at the moment jay but 2mm drop each end of tile
put the two faces of the tiles together ,see how much the difference is ,ive been told that a deflection of as much as 6mm
is acceptable for sale, how do you go about fixing those ?


yeah that's about the norm these days



The time to bring it to your customers attention is before you start - any tile fixed is your responsibility.
Now that there is an issue and an unhappy customer, you could be in the middle of a dilemma.
Good luck.
find us : www.tilernewcastle.co.uk visit us : www.timelesstilingsolutions.com
' CREATING TIMELESS WALLS & FLOORS - CREATING TIMELESS WALLS & FLOORS '
this splashback looked ok in brickbond, even tho' I told the contractor that imo they should be stacked....he was adamant he was right until the downlighters went on casting shadows down all the vertical joints
this is how it looked when I re-did it how I wanted, (and got paid twice)
![]()

hi guys, this kind of scenario could escalate to a major problem for everyone concerned.as already mentioned the tiler could potentially be responsible for removal and replacement of tiles, if the tiler continues with the installation despite warning the client.i have never been in this situation myself. what would everyone do if after told by the client to carry on like nothstar was told? would you be firm and tell the client that you are not happy with the tile quality and will not continue? how far would you be prepared to go if the customer refuses to listen to your professional advice which may leave you carrying the can of responsibility later down the track? myself i have not had too many of these but every now and again we will get one. once i just walked away because the client didnt want to pay for waterproofing a deck over living space.![]()


That is were it gets interesting. as stated on most tile boxes once laid no refund (or something like that) in my opinion the tradesman has the final call .if its gonna look crap when finished remember your name is on it,if the tiles are bowed or size variation then send them back the supplier wont learn any other way ,earlier this week i mentioned to the boss of the tile shop i use most that a certain tile he was selling was bowed bad ,his reply was (we only sell them we don't make them) well his wish was granted two days later when i rejected 65 meters square due to bow.yes same shop (KARMA)

thats what i like to hear.the thing is that some people will buy a load of tiles because thay are cheap.what they dont know is that they are cheap because they are end of line and no refund etc. i have a friend who did this and 12 months later asked my advice and guidance to lay (i couldnt install for him because of my accident) but wasnt in a position to reject them as upon inspection they were really sizey (3-6mm difference) and just had a hell of a time to lay them despite all i could do. the thing is that if this was a paying customer what would you do? you know its going to look horrible. do you get them to sign something that passes responsibility to the client?


if you cant make a good job out of it why do it

thanks for reminding me. my old man was the same ,if it wasnt going to add to his reputation then its not worth doing
oh by the way jay tilingforumnz.com will be up and running soon just waiting on dans go ahead. you are only 2 hours away from us would be good to hear from you.![]()


yeah might drop in if Dan gives me the heads up to when its up and running
Simple - don't fix bowed tiles anything other than stacked.
Heck, even Porcelanosa insist that their nigh-perfect tiles aren't fixed brick-bond or even 3/4 bond.
Two reasons: One - it looks cack anyway, and Two - it accentuates ANY bowing no matter how slight.

There is an allowable tolerance for warpage !! This is stated on many boxes !! Also some british / european standards blurb out there as well. I have had suppliers out numerous times... I cha;lenge you to find many porcelain tiles 300 & above that are not warped to some degree.It is due to the high temp firing process and the way they are dried.
Test .. lay one tile face up... then one tile face down on top.. if they do not touch everywhere they are warped... most do not.
Either stack em or use one third bond / and or increase your spacing. Job can still look great
You will end up sending loads of tiles back ... and not fixing any.,
Last edited by Yorkshire Tiling Services; 13-10-2011 at 11:36 PM.




*looks nice like that m8. i think it is the same stone i have used a few times*
12090-image137.jpg
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Have a look at Nero Granito floor and wall tiles 60x30 it is posable to get them near perfect maybe a bees dick in it
anyway why make a rectangle tile to lay strait bond ////////
While were on the subject why are they called RECTIFIED TILES norm is they started out as a 600x600 but were to bowed to get by standards so they cut them in half problem solved///
in other words second grade tiles
Last edited by jay; 14-10-2011 at 08:48 AM.


a bees dick...pmsl
had this last year with v+b tiles 600x300, client wanted them bricked, the shop sent the v+b rep when I refused to go brickbond. He mentioned 4mm manufacturing tolerance allowable diagonally across the face of the tiles, the bow on the supplied tiles was 2mm. In the end the tiles went up brickbond, we just got the downlighters moved away from the edge of the walls.
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