Is there a standard size for grout width for granite floors?

QUESTION

Grout Joint Widths for Granite Tile - Is there a standard size for grout width for granite floors? Our new boat has 1/4 inch and our old boat has very minimal, which looks much better. Thanks.

ANSWER

ANSWER - Grout joint width depends on how consistent is the size dimensions of the tile and how flat is the substrate it is being attached to.

Should always have at least 1/8" wide grout joint. Some precisely sized stone can be 1/16" wide under ideal conditions, but I don't recommend it.

Some installers will use a wider grout joint than necessary so it is easier for them to install the tile and compensate for the irregularities of the tile and the substrate.

Generally speaking gauged granite tiles are installed with a 1/8" wide grout joint if the conditions are adequate.

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