It follows that the maximum height of the arch will be midpoint of the tile or in your case at the 12 point of the long 24 edge.
Tile floor no spacing.
Grout is a necessary and integral part of many tile jobs for several reasons.
The instructions for installing this tile state using tile spacers speaks of the grout lines suggested size being 3 16 so i would triple check to be certain that these are a self spacing tile as i see no where that that is listed as being the case on any site.
As a general rule floor tiles should have grout lines of 1 8 inch or larger depending on the type and size of tile.
Where the tile is being installed.
Crater lake 3x12 design.
It keeps moisture out of the substrate helps keep tile lines straight and.
12 by 24 tiles can have some bow to them instead of being perfectly flat when set on the floor they ll have a slight arch.
Spacing your tiles an extra mm apart can often save the majority of small cuts across the total length of a wall floor this can make a big difference.
How to lay tile without grout lines.
Where you are installing your tile should also be considered when choosing your grout size.
For example floor installations should consider using larger grout lines for more traction.