Sanded vs Unsanded Grout – Which is right for your project?

When it comes to selecting grout, different types of grout serve different purposes and possess unique characteristics. In this quick guide, I am explaining unsanded vs sanded grout-and explore their uses, tips for application, and the pros of each. Additionally, we’ll touch upon other types of grout since those are useful in specific situations.

The Basics: If you are using ⅛ or 1/16th lines on a surface that won’t take a lot of pressure (such as a wall) and are not using scratchable materials such as polished stone or glass tile, then go with unsanded grout. For all other installations and caveats to the above, use sanded or read on for more information.

Sanded Grout

All grout is a blend of Portland cement and additives. Both types are available in a multitude of colors to fit most tile pattern types. If you are replacing tile (I have a step-by-step guide with video for that), then it is best to match the grout around the tile.

What is sanded grout?

The addition of sand provides durability and makes it ideal for wider grout joints typically found in floor tiles or areas subject to greater stress and movement. However, it also gives the tile a sandpapery texture. Here is an example of the sanded grout in my kitchen:

Pros:

• Offers greater strength and durability, making it resistant to cracking and shrinkage.
• Ideal for filling wider grout joints and providing structural support.
• Available in a wide range of colors to complement various tile designs.
• Provides more non-slip surface for areas like shower floors.

Uses:

• Larger Grout Lines. Sanded grout is best suited for grout joints that are ⅛ inch or wider.
• Floors. It is commonly used in flooring applications such as kitchens, bathrooms, and high-traffic areas.
• Water prone Areas. Because it provides better structural support, it is more suitable for outdoor projects and areas prone to moisture exposure like showers and sink backsplashes
• It is NOT recommended on materials prone to scratches like marble or polished stone. You can see above that we used it on honed marble – that’s fine because ours has a matte finish that won’t show scratches easily. I have a satin honed marble in a bathroom that I would not recommend sanded grout on.
• Grout should never be used in areas where caulk is more appropriate, such as caulking around tub or shower surrounds or connecting tile to wall board.

Tips for Using Sanded Grout

• It generally isn’t as aesthetically pleasing in narrow ⅛ inch lines.
• My personal opinion is that I don’t like it next to shiny tile, even if the tile is scratch resistant.
• Ensure that the grout lines are clean and free of debris before application.
• Work in small sections to prevent the grout from drying out too quickly.
• Check out my complete guide on regrouting tile for more tips on the installation process.

Unsanded Grout

This type of grout is smoother in texture and is suitable for narrower grout joints, either 1/16 or ⅛ grout lines. Below is our bathroom where I used unsanded grout in the wall and a pre-made epoxy grout for the glass tile in the niche.

Tiling is one of my specialties with a few dozen projects done. If you are new or would just like a refresh, this guide on How to Tile a Wall will walk you through everything to know, even if you are a first timer!

Pros:

• Smooth texture makes it easier to work with and ideal for intricate tile designs.
• Less likely to scratch delicate tiles, preserving their aesthetic appeal.
• Available in a wide range of colors to match any tile installation.

Uses:

• Small Grout Lines. Unsanded grout is designed for grout joints that are ⅛ inch or less.
• Walls. Unsanded grout is more likely to crack but should not if used in places with no movement or high pressure like walls or backsplashes.
• Delicate Tile. Ideal for delicate or polished tiles like marble or polished.

Tips for Using Unsanded Grout

• Use a rubber float to apply unsanded grout evenly into the joints.
• It can be a little more tricky to get a smooth surface, so make sure the grout isn’t too wet when doing your final wipes.
• Seal the grout after it has cured to enhance its stain resistance and longevity.
• Read all of our tips and guide to deep cleaning grout and surfaces.

Other Types of Grout

In addition to sanded and unsanded grout, there are several other specialized types available to suit specific needs. Exploring other types of grout can provide solutions tailored to specific project requirements:

• Epoxy Grout: Extremely durable and resistant to stains, chemicals, and moisture. Ideal for high-traffic areas and commercial applications.
• Pre-Mixed Grout: Convenient and easy to use, requiring no mixing. However, it may have a shorter shelf life compared to powdered grout and is much more expensive.
• Colored Grout: Available in a variety of colors to enhance the design aesthetic and complement tile choices.
• Acrylic Grout: Flexible and water-resistant, suitable for areas prone to movement and moisture, such as countertops and tub surrounds. Sometimes acrylic grout is also referred to as polymer modified grout and can come in sanded or unsanded texture.

Whether opting for sanded or unsanded grout, understanding their differences, uses, and application techniques will ensure a professional-looking result.