The Difference Between Sanded Vs. Unsanded Grout For Backsplash Tile

When you’re reviewing instructions for grouting tile, one of the first steps will be choosing the right grout for your backsplash tile. Selecting between sanded and unsanded grout isn’t just a matter of preference — it’s about matching the right formula to your specific wall tile installation. While unsanded grout may cost a bit more, the decision isn’t about price or even durability alone. Each grout type has distinct benefits depending on whether you’re installing glass tile, porcelain, or ceramic.

Sanded grout is the most common choice for wall tile and flooring because it’s versatile and strong. It contains fine grains of silica or quartz that act as fillers and reinforce the grout, helping it resist cracking and shrinking over time. This type of grout performs best for joints wider than ⅛ inch, making it ideal for natural stone or larger format backsplash tile where the spaces between tiles are more pronounced.

Unsanded grout, on the other hand, is preferred for vertical applications like a kitchen backsplash tile installation. It’s smoother, easier to spread, and adheres better to upright surfaces. Because it contains no sand, it’s safe for delicate finishes such as glass tile, metal, or polished stone — materials that can be scratched during installation with sanded varieties. Unsanded grout also works best with grout lines ⅛ inch or smaller, which is typical for tightly spaced backsplash tile or mosaic patterns mounted on mesh sheets.

When choosing grout, the width of your joints and the type of wall tile matter most. For example, glass tile mosaics and small-format ceramics often require unsanded grout to maintain a clean, even surface. If your wall tile features wider gaps or heavier textures, sanded grout will provide extra strength and stability. Always refer to your tile manufacturer’s installation guide to ensure your grout complements the beauty and longevity of your backsplash tile design.

Angora Rhombus Polished Tile

Angora Rhombus Polished Tile

This kitchen showcases Angora Rhombus, a luxurious backsplash tile featuring soft cream, beige, and taupe tones arranged in an elegant geometric pattern. The natural variation in the marble tile brings warmth and dimension to the space, beautifully complementing the white cabinetry and light wood accents. Its polished surface reflects light, giving the kitchen a bright, refined look while adding timeless appeal to the design. For this type of wall tile, unsanded grout is typically recommended since marble has a smooth, polished finish that can be scratched by sanded grout. When paired with a neutral grout shade, this backsplash tile achieves a seamless, sophisticated appearance that enhances the overall elegance of the kitchen.

Azul Scallop Tile

Azul Scallop Tile

This outdoor hardscape application showcases Azul Scallop Tile as a striking vertical accent along a poolside seating wall, where color, texture, and setting work together to create a resort-inspired atmosphere. The rich ocean-blue tones echo the surrounding water, while the signature fish scale pattern introduces gentle movement that feels both sculptural and organic. Framed by lush greenery and clean-lined hardscape elements, the tile brings a polished yet relaxed coastal character to the outdoor space.

For installation, unsanded grout is recommended to protect the glazed finish and achieve clean grout lines that follow the curved edges of the scallop design. A light or neutral grout complements the tile’s vibrant color and ensures the mosaic tile pattern remains crisp and visually balanced in an open-air setting.

Cielo Azul Glossy

Cielo Azul Scallop Glossy

This modern kitchen features Cielo Azul Scallop Glossy, a soothing backsplash tile in a serene blue hue that adds both color and elegance to the bright, airy space. The scallop-shaped porcelain tile introduces a soft, wave-like pattern that contrasts beautifully with the crisp white cabinetry and sleek stainless steel appliances. Its glossy finish reflects natural light from the large window, enhancing the kitchen’s open and inviting atmosphere. For this smooth, glazed wall tile, unsanded grout is recommended to prevent scratching and achieve a clean, even finish between the delicate curves of the tiles. When paired with light-colored grout, this mosaic backsplash design delivers a seamless, coastal-inspired look perfect for contemporary or transitional interiors.

Winslow Weave Polished Tile

Winslow Weave Polished Tile

This elegant kitchen features Winslow Weave Polished Tile, a sophisticated backsplash tile with interwoven patterns of warm beige and soft gray that perfectly complement the rich wood cabinetry. The mosaic tile features a basketweave design that adds depth and dimension to the cooking area, creating a refined focal point. The polished porcelain tile surface reflects light beautifully, balancing the natural warmth of the wood with a touch of modern luxury. For this smooth wall tile, unsanded grout is recommended to prevent scratching and maintain the sleek, high-gloss finish. When paired with a light or neutral grout, this backsplash tile achieves a seamless, cohesive look that enhances both contemporary and classic kitchen styles.

Even the most complex-looking backsplash tile mosaics can be a DIY installation when you have the right tools — and the right grout. Choose your favorite tile first or consider one of these top sellers, then consider the ideal spacing for your backsplash designs, and the rest will be a simple matter of following instructions. You’ll be a tiling pro in no time.

If you still have questions about what grout is best for your tile backsplash or are looking for "where to buy backsplash tile near me", please chat with our experienced team at MSI online, or find an authorized MSI dealer near you to visit a showroom in person.

READ MORE ABOUT DIFFERENT TYPES GROUT

Sanded Vs. Non-Sanded Grout Backsplash

Tricks To Cleaning the Grout On Your Kitchen Backsplash

Learn The Right Way to Grout A Mosaic Kitchen Backsplash