For highly polished, easily scratched tiles, such as marble, unsanded grout is recommended because sanded aggregate may damage these types of tiles. For this reason, it is not recommended that unsanded grout be used in floor tile installations.

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Is unsanded grout OK for floors?

Grout that hasn’t been sanded is more likely to crack under pressure, making it unsuitable for most floor applications. Most interior flooring installations use sanded grout.

Should I use sanded or unsanded grout on floor?

It is best to use sanded grout for grout lines that are between 1/8-inch and 1-inch wide. Impractical and unstable grout lines larger than half an inch wide are a no-no. Because 1/8-inch grout lines can also be filled with unsanded grout, sanded grout is preferred between the two.

What kind of grout do you use for floor tiles?

In most tile applications, unsanded grout is used for grout joints smaller than 1/16″ to 1/8″. Sanded grout’s added structure is required for wider grout joints, which can range in width from 1/8″ to 5/8″, with some going as wide as 1″.

Can I use unsanded grout on a bathroom floor?

For tile joints that are no wider than 1/8 inch, it is best to use unsanded grout. Suitable for most horizontal surfaces, including bathroom floors. Ideal for tiling vertical surfaces like shower walls and backsplashes.

Does unsanded grout need to be sealed?

Unsanded grout, which does not contain sand, is a less popular option in tile applications. However, even though sanded grout is more water-resistant, sealing it is still recommended, especially in areas that are likely to get wet or see a lot of foot traffic.