These can be left in place and will not be seen when you have completed your tiling.
Gap between floor and wall tiles.
Gently spread the tiles and place two spacers between them one at the top edge of the seam and one at the bottom edge.
Fill gaps larger than 1 8 inch.
The gap goes 3 5cm to 4cm back to the breeze block.
Gap between floor tiles and wall tiles.
If your gap is smaller than 1 8 inch in width use regular caulk.
Gently push the tiles together so the spacers are tight in the joint.
For smaller tiles is advisable to use small spacers.
As the tiles increase in size a larger gap becomes acceptable.
There is a gap of say 5mm to 8mm give or take high between where the floor tiles meet the wall tiles in the bathroom.
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The large format 18 inch tiles should have inch space in between.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls.
It shows how to seal a gap in the corner where the tile floor.
Place them between the tiles are you lay each one and grout straight over the top.
The d i y video how to seal a big gap between tile floor and tile wall in a bathroom or shower.
If you have tile on the wall adjoining the tub select a caulk that matches the color of the grout.
Instead fill it with an elastic material capable of sustaining the movement of the floor and the movement of the wall.
It might loosen them and might rot the floor.
Caulking is the best choice for this application.