Standards for tile lippage There are industry standards for determining what is accept-able or excessive tile lippage. The American National Standards Institute (ANSI) A108.02-2013– 4.3.7 for the installation of ceramic tile states that for grout joints less than 1/4” (6 mm) wide, the allow-able lippage is 1/32” (1 mm) plus

Perceived or apparent lippage is a condition where in fact the tile installation meets the standards and does not have excessive lippage, but appears to have excessive lippage. This can be caused by natural or manufactured lighting emanating from an angle that accentuates the lippage by creating a shaded edge.

If you have excessive tile lippage, then normally you have to remove those affected tiles to correct the problem. You need to determine if the tile lippage is in fact excessive per industry standards or if it is an optical illusion, which can occur due to the type and position of lighting in the room that creates a shadowing affect.

ANSWER - Per the Natural Stone Institute Dimension Stone Design Manual the tolerance for the allowable lippage for a for a calibrated marble or any calibrated natural stone floor tile is 1/32". This is based on the grout joint width being at least 1/16" wide and preferably 1/8" wide.

The standards state that a tile with a grout joint that is less than ¼” wide can have 1/32” of lippage in addition of what the actual warpage is of the tile being installed. This is assuming that the warpage of the tile is within the standard’s acceptable range for that type of tile.

Lippage is the measurement of the vertical displacement between the edges of two adjacent stones. Most quality polished or honed tile stones have very little warpage, although some could be present depending on how the stone is cut and depending on …

ANSWER - Tile lippage is the difference in height between two adjacent edges of tile, or of a crack or of a control joint in concrete. ANSI A108.02-2013, section 4.3.7 Lippage states that a ceramic tile (porcelain is a type of ceramic tile) grout joint that is less than 1/4" in width cannot have any more lippage than 1/32" plus the actual ...

There is a greater propensity to have actual, or the perception of, excessive lippage, and it may not be possible to fully fill the grout joint with grout. If the grout joint is 1/16” wide, then the allowable lippage is 1/16” plus the inherent warpage. If the warpage is …

Acceptable lippage per ANSI A108.02 says that the tile lippage can't be more than the inherent lippage of the tile being installed, assuming it isn't more than the allowable lippage in ANSI A137.1, plus 1/32" for grout joints less than 1/4" wide or …

Lippage is the result of the method of installation, the condition of the stone, the condition of the substrate, and the skill level of the installer. Ungauged stone should be installed in a wet-set mortar method that can help compensate for the variation in thickness of the stone.