Ansi a137 1 specifications for ceramic tile has established allowable tolerances criteria for each type or category of ceramic tile.
Ceramic floor tile tolerances.
For large format tiles with one.
Both specifications use the water absorption characteristic to define product type as water absorption is a commonly related item for all.
Manufacturing tolerances for ceramic tiles.
Accordingly the tolerance for variation from tile to tile includes the actual warpage of the tile.
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.
5 4 6 tile finish and joints a when measured with a straightedge the finished surface of the tiling should.
B installation tolerances for tiles after they are installed this is described in as 3958 1 1991 ceramic tiles part 1.
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.
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.
Guide to the installation of ceramic tiles on page 53.
This information is critical for any new tilers.
When a tile is warped but within standards all of the corners cannot be set in the plane of the adjoining tiles.
The intent of the standard is to define reasonable lippage from one tile to another.
Ceramic tiles are generally manufactured to conform to the european agreed standard of which the english language version is bs 6431 or the newer iso dis 10545.
Qld standards and tolerances for ceramic and porcelain tiles.
Tolerances for modern rectified edge tiles are expected to be extremely tight.
There are tolerances for tile lippage.
However as of 2011 subsurface tolerances for tile installation based on tile unit size have been updated in the tcna handbook.
Tolerances when tiles 8 x 8 or larger had been selected.
Ceramic tiles have always had warpage and other dimensional variations although current production technology results in more consistency.
