Finished grout lines will vary from 1 16 to 3 16.
Marble subway tile grout line.
Most floor tiles are 8 inches by 8 inches but larger versions are available.
Grout including sealed grout tends to wear more quickly than tile and become more porous and prone to staining.
This thickness leaves room for the natural variation in.
How to grout marble tile.
The best thing to do is use the smallest grout line your particular tile will allow and get a grout that closely matches the tile.
I try to use the smallest grout lines the tile will allow.
For most granite and marble tile i install i use either 1 32 or 1 16 inch grout lines.
Thinner grout spacing for subway tile creates a more subtle effect and wider grout lines a more dramatic one.
Although tile installations can be installed in groutless format the traditional method calls for grout to be placed in the joints between the tiles.
Note that using the smallest grout possible will increase installation time.
We recommend a 3 16 grout size for our ceramic tile line.
Because of this minimizing the width of grout lines is advisable.
If smaller spacers like 1 8 are used it will accentuate the size difference of handmade tile.
Special types such as slate or quarry tiles often do not have edges uniform enough to look good with tight spacing.
In most other tile i will use 1 16 or 1 8 inch lines.
If you are going for high contrast or retro style wider grout spacing gives you the opportunity to make a statement with your grout.