Common practice is 2 3mm for wall tiles and 3 5mm for floor tiles.
Recommended tile spacing floor.
Gridding will maintain your straight grout lines as you work across the floor.
Two inch tiles are factory spaced and sheet mounted.
As a general rule floor tiles should have grout lines of 1 8 inch or larger depending on the type and size of tile.
Actual finished grout spaces will vary from 1 8 to 1 4 if 3 16 spacers are used.
Taking british standards into consideration as well as common practice it is recommended that wall spacers are 2 3mm with 2mm covering the majority of requirements and floor spacers 3 5mm.
Are there any guidelines for the size of spacers required.
Finished grout lines will vary from 1 16 to 3 16.
The floor tiles are ceramic 500 x 250 matt and wall tiles 300 x 200 glossy.
Use bal wide joint grout it s a little thinner than some of the other wide joints.
Note that using the smallest grout possible will increase installation time.
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.
Popular tile spacer sizes not to scale.
A rectified tile is one which is cut or manufactured to a precise measured size.
But when you set a tile that is 1 8 wider than the norm that extra width could fill your 1 16 grout line and you could end up with tiles touching each other.
Or is it just personal artistic preference.
Most floor tiles are 8 inches by 8 inches but larger versions are available.
By using three times your tiles should never touch.
Therefore the spacing is predetermined and usually averages 3 16 to 1 4 inch.
The key difference in tile type in relation to grout lines is whether you tile is rectified or not.
Special types such as slate or quarry tiles often do not have edges uniform enough to look good with tight spacing.