If smaller spacers like 1 8 are used it will accentuate the size difference of handmade tile.
Marble tile grout size.
This will create a smooth slab like surface out of the flat tops of the marble tile.
Tiles that vary in size and shape need large grout joint widths 3 8 to 1 2 inch.
We recommend a 3 16 grout size for our ceramic tile line.
You never want tiles in direct contact with one another.
For the size of the tiles you are using the minimum grout line width for the 12 wall tile is generally 1 16 and for the 24 floor tile 1 8.
Finished grout lines will vary from 1 16 to 3 16.
Actual finished grout spaces will vary from 1 8 to 1 4 if 3 16 spacers are used.
A higher quality tile could allow for a 1 16 or 1 8 grout line and maybe even a brick layout as lippage may not be an issue in a perfect tile world where as a lower quality tile might have major lippage risk so laying the tile in 1 3 s and having a 1 4 grout line is recommended.
Large grout joints will require the use of sanded grout.
This thickness leaves room for the natural variation in size and the perfectly imperfect edges of handmade tile.
Joints wider than 1 8 inch can result in cracked grout and joints narrower than 1 32 inch might.
Literally zero variation in size and all perfectly rectangular.
Grout lines can vary greatly from jointless installations showing no or virtually no grout to about 1 4 inch.
That s assuming the tiles are indeed perfect in size.
You can space marble tiles on a fireplace as wide as 1 8 inch apart or as narrow as 1 32 inch.
Apply the grout in the same fashion with the tip of the float and let the grout begin to harden before.
Note that using the smallest grout possible will increase installation time.
All other cuts of tile from tumbled to chiseled to punched contain slight variations in shape and size.
Fill grout joints on natural marble with joints larger than 1 8 inch with sanded grout.
Marble is a cut product manufactured to extremely tight tolerances and usually designed to be installed with 1 16 spacing.
Rectified tiles are perfectly uniform with precisely defined edges requiring the least amount of grout.
Marble flooring installed in different sized repeating patterns such as the versailles pattern require large grout line widths.