Ceramic tiles have always had warpage and other dimensional variations although current production technology results in more consistency.
Floor tile tolerances.
Tolerances when tiles 8 x 8 or larger had been selected.
This information is critical for any new tilers.
The ansi a108 02 standards say that acceptable lippage for floor tiles with a grout joint width of 1 16 to less than 1 4 is 1 32 plus the allowable inherent warpage of the tile.
When a tile is warped but within standards all of the corners cannot be set in the plane of the adjoining tiles.
However as of 2011 subsurface tolerances for tile installation based on tile unit size have been updated in the tcna handbook.
Qld standards and tolerances for ceramic and porcelain tiles.
For tiles with all edges less than 15 the maximum allowable variation is 1 4 in 10 and no more than 1 16 in 12.
2 how many tiles from any one batch can be outside the tolerances described in iso 13006 1998.
Up to 10 of tiles as supplied.
If your tile has a rectified machine trimmed edge then there is a higher requirement for size control as the joint gaps will be narrow.
Table 1 in as 4459 1 1999 also iso 10545 1 1995 ceramic tiles part 1.
The intent of the standard is to define reasonable lippage from one tile to another.
If the grout joint width is 1 4 or greater then the allowable warpage is 1 16 plus the allowable inherent warpage of the tile.
Tile lippage which is were one edge of a tile is higher or lower than the adjacent tile edge is normal to a degree but there are limitations.
7 vba guide to standards and tolerances 2015 11 floor and wall tiling 54 11 01 floor and wall tiling 54 11 02 floor and wall tiling where the builder supplies the tiles 54 11 03 floor and wall tiling where the owner supplies the tiles for laying by the builder 54 11 04 floor and wall tiles where the owner supplies and lays the tiles 54.
Floor and wall tiling tolerances and standards in accordance with queensland regulations below is some helpful yet brief information about the different standards and tolerances that exist for floor and wall tiling within queensland.
Sampling and basis for acceptance allows one tile in 10 to be outside the above dimensional tolerances i e.
Tolerances for modern rectified edge tiles are expected to be extremely tight.
There are rectified porcelain tiles that are more consistent in size tolerances where they recommend 1 16 inch wide grout joints.
There are tolerances for tile lippage.