First you must know how much thinset mortar you want beneath the tile in the finished installation.
12x24 wall tile mortar.
Crater lake 3x12 design.
Otherwise you do.
The less flat the tile is the more thinset mortar you need beneath it which means a larger trowel size.
When installing large format tile you ll want to use a 1 2 x 1 2 square notched trowel.
It must be easy to work with and it must adequately fill in gaps between the tile and the substrate.
In general there is more size variation in larger sized handmade tiles so they need a bigger grout joint for that to become less noticeable and for a more even installation.
The size of your tile should be considered when choosing a grout size.
More accurately it depends on how flat the tile and substrate are.
Whether wall or floor tile that tile needs to thoroughly stick to its base surface demands placed on tile adhesive are both extensive and steep.
Troweling the mortar onto the wall.
Use the right mortar for 12 24 tile you often hear about using thin set to install tile but in the case of installing 12 24 tile as flooring you ll want to use something called medium bed mortar.
It cannot cure too fast.
This will make sure that the ridges of the mortar collapse when setting the tile and give you the required 85 or more of coverage.
The 12 x 24 is the new 12 x 12.
Tile adhesive is expected to hold the tile in place not just for years but for decades without fail.