On the contrary if you have to install cut tiles you should spread the thinset to the back of the tiles and install it with the cut edge pointing towards the inside corner.
How to grout tile wall corners.
Tom meehan a second generation tile installer and co author of working with tile who lives and works in harwich mass responds.
According to the tile council of north america anywhere a tile surface changes plane like an interior corner or meets an abutting surface against a wall or hardwood floor for example should be considered a movement joint.
Always grout the walls first for this how to grout tile project and after they re finished the floor.
That ll keep you from messing up a finished floor.
Simply put because of movement.
Use whichever side or corner of the float is necessary to fully compress grout into the entire.
With gaps that large what you can do it install a bead of silicone against one side about 1 8 thick leaving the rest of the gap open then once cured grout between the tile and silicone.
Use a hard edged rubber grout float and hold it at a 45 degree angle.
My tile installer recently told me that he wanted to use caulk in the corners of a tiled shower instead of grout is that necessary.
Why does grout crack in the corners of showers backsplashes and against abutting surfaces.
The vast majority of showers that i ve tiled have had no problems when i use grout in the corners.
Work in a small area at a time roughly a 3 x 3 foot section.
Use this method for both pre mixed and powdered grout.
Apply the grout diagonally across the tile joints to squish the grout into the joints photo 5.
Pour a quart to half gallon of grout on the tiles.
Don t grout the corner line.
Grout both walls spreading the grout over the tiles with a grout float.
Press the grout into the lines between the tiles while scraping it off the surface then wipe up the excess with a damp sponge.