Specification

The TCNA Handbook recommends no more than a 33% offset and a wider grout joint for offset
installations of tile larger than 18” on the longest side. This is because all tiles are higher in the
middle than at the edges. When the highest point (middle) of one tile is next to the lowest
point (edge) of the tile next to it, unacceptable lippage can result. Florida Tile is aware that
many installers wish to use tiles (especially 12”x24” tiles) in brick patterns with a 50%
offset. Typically our tiles are flatter than those of our competitors and better suited for this
type of application. We do recommend a wider (3/16” minimum) grout joint for this type of
installation and it is important to avoid ‘wash’ lighting that is set close to the tiled surface which
can aggravate the appearance of lippage due to shadows. Our 6x24 and wall tile products can
be installed with a typical 1/8” grout joint and a 50% offset. Care must be taken to follow the
subfloor flatness and installation guidelines in the TCNA Handbook for a successful installation.