Generally unsanded grout is used for tile applications with narrower grout joints from 1 16 to 1 8.
Slate wall tile grout size.
Grout including sealed grout tends to wear more quickly than tile and become more porous and prone to staining.
For cementitious grout joints smaller than 1 8 generally should only be grouted with unsanded grout and joints of 1 8 and larger should only be grouted with sanded grout.
On a vertical surface you generally won t want to go larger than 12 x 12 inch tiles.
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.
Grout lines for floor tiles as a general rule floor tiles should have grout lines of 1 8 inch or larger depending on the type and size of tile.
Special types such as slate or quarry tiles often do not have edges uniform enough to look good with tight spacing.
Thick natural finish with a low sheen and random variation in tone p e i.
If smaller spacers like 1 8 are used it will accentuate the size difference of handmade tile.
The additional structure of sanded grout is needed for wider grout joints from 1 8 to 5 8 and some even can go as wide as 1.
Slate tiles are available in a variety of different sizes including 2 inch 4 inch 6 inch 12 inch 16 inch and 24 inch squares.
Most floor tiles are 8 inches by 8 inches but larger versions are available.
Width x 24 in.
Tile can be laid out straight or set on a diagonal.
In addition your layout could use a variety of different sizes.
Finished grout lines will vary from 1 16 to 3 16.
Rating is not applicable for natural stone.
Sanded and unsanded grouts are usually sufficient for residential uses but many homeowners and builders are moving completely away from it.
Grade 1 first quality natural stone slate tile for floor wall and countertop use 12 in.
Because of this minimizing the width of grout lines is advisable keeping it down.
Joints larger that 3 8 usually need a more heavily sanded grout to accommodate the large joint.