Ceramic tiles are available in a variety of sizes.
Gap between wall and floor tiles.
Never fill this gap with grout because tile grout is not flexible.
For smaller tiles is advisable to use small spacers.
The large format 18 inch tiles should have inch space in between.
The overall finish of your job really does depend on your own personal style.
How to space between ceramic tiles.
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It shows how to seal a gap in the corner where the tile floor.
It might loosen them and might rot the floor.
Current trends are moving towards leaving much smaller grout lines between tiles.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls.
Instead fill it with an elastic material capable of sustaining the movement of the floor and the movement of the wall.
Caulking is the best choice for this application.
The d i y video how to seal a big gap between tile floor and tile wall in a bathroom or shower.