Gap Between Tiles And Wall
The overall finish of your job really does depend on your own personal style.
Gap between tiles and wall. Caulking is the best choice for this application. If you have tile on the wall adjoining the tub select a caulk that matches the color of the grout. As the tiles increase in size a larger gap becomes acceptable. For smaller tiles is advisable to use small spacers.
Therefore the spacing is predetermined and usually averages 3 16 to 1 4 inch. The large format 18 inch tiles should have inch space in between. Instead fill it with an elastic material capable of sustaining the movement of the floor and the movement of the wall. Ceramic tile wall gap back of tile should rest on finished wall.
Tile stores generally sell caulks that match the grout. The line will continue maintaining caulk gap regardless of the gap of the wall to counter. Fill gaps up to 1 4 inch in width with caulk. Your tile person will take the largest gap and run a tape line using that as the thickness or the caulk.
Any gap should never be greater than 1 8 inch. Four inch tiles called 4 and a quarter in the tile trade feature built in self fitting nubs that give the tiles spacing between 1 16 and 1 8 inch wide. Two inch tiles are factory spaced and sheet mounted. Current trends are moving towards leaving much smaller grout lines between tiles.
Get photos of great finish details include photos with bid and contract. This will give you say a perfect 3 8 caulk line with an irregular wall to counter gap. Whenever tile has a right angle like that grout is prone to fail so caulk is used. When you install ceramic tile on the floor you must take care to create an expansion joint between the walls and the tiled floor.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls. You can try and maybe nothing will happen but if it cracks you will have to dig it out.