The best tile choice for showers to prevent mold is porcelain. Because porcelain is fired at extreme temperatures, it has a dense, non-porous surface that naturally resists moisture absorption, making it highly effective at keeping mold and mildew at bay.
Both ceramic and porcelain tiles are resistant to stains and mold, making them perfect for the shower.
For a truly mold-resistant shower, the best options are non-porous materials like solid surface, acrylic, or porcelain. These do not absorb moisture or provide the crevices mold needs to grow. Unlike traditional tile, seamless shower panels eliminate grout lines, which are the #1 source of mold and mildew.
Avoid: Large-format tiles: fewer grout lines mean less traction. Polished tile: shiny surfaces can be low traction when wet. Glazed ceramic tile: often too smooth for a shower floor.
Porcelain Tile
Denser and less porous, they are highly resistant to water absorption, stains, and wear. They're perfect for high-traffic areas and wet environments, making them one of the easiest tile materials to clean. Opt for larger porcelain tiles to minimize grout lines and simplify maintenance.
Porcelain tiles are a popular idea for walk-in showers. They're easy to maintain and are durable, water-resistant, and versatile choice.
LuxStone (crushed stone composite) and acrylic (plastic) offer different benefits: LuxStone excels in luxury, durability, and a high-end, matte stone look, while acrylic is generally more budget-friendly, lightweight, and available in a wide range of colors. LuxStone is a more robust, long-term investment, whereas acrylic is ideal for quick, cost-effective remodels.
Shower tile alternatives—such as solid surface, acrylic, or laminate panels—eliminate grout, drastically reducing cleaning time and the risk of water leaks. For a seamless, low-maintenance shower, consider these top materials that can be installed in a fraction of the time it takes to lay traditional tile.
Porcelain tile is universally considered the best and most practical floor for a walk-in shower. It is highly durable, completely waterproof, and available in a wide array of styles. To ensure safety against slipping, choose smaller-format tiles (like 2x2 inches) or textured tiles so the grout lines and texture provide grip.
Porcelain is the overall best tile for shower walls. It is dense, highly durable, and virtually non-porous (absorbing less than 0.5% of water), making it highly resistant to moisture.
Regular showers can easily increase indoor humidity well above 70%. After use, moisture condenses and runs down the walls, remaining trapped in porous materials like cementitious grout. Even if the tiles appear dry, residual moisture combined with soap residue creates ideal conditions for mold spores to grow.
The Japanese practice of hanging futons and pillows outside to “air out” isn't just traditional — it kills mold and mites that love humid bedding. Wipe down bathrooms after every use. Exhaust fans during showers, wipe tiles and mirrors, keep surfaces dry. Bathrooms are ground zero for household mold.
Hotels keep glass shower doors spotless by combining strong commercial cleaning agents with routine maintenance and smart preventative coatings. Because they deal with heavy daily guest turnover, housekeeping staff rely on quick but highly effective strategies to prevent soap scum and hard water buildup.
Porcelain is the superior, highly recommended choice for shower floors and walls due to its near-zero water absorption (less than 0.5%), exceptional durability, and resistance to mold. While ceramic is softer, easier to cut, and budget-friendly for shower walls, its higher porosity makes it a poor choice for shower floors.
For areas with high moisture, like showers, penetrating sealers are typically the better choice. Grout should be sealed after it's fully cured. The Grout Medic can do this typically 48-72 hours after installation. This prevents moisture from seeping into the grout and helps keep it clean.
Mold is generally at its worst from early spring through early fall (specifically July through October), peaking during the warmest and most humid months. Mold thrives in warm temperatures (60∘F to 80∘F) combined with relative humidity levels above 60%.
Tiles That Absorb Too Much Water
What is the easiest shower floor tile to keep clean? Porcelain shower floor tiles are among the easiest to clean due to their non-porous surface, which resists stains and mold. Properly sealed ceramic tiles and marble shower floor tiles are also low-maintenance and come in various finishes.
Chip Resistance: Porcelain is typically more resistant to chipping than ceramic. Break Resistance: Both can break if dropped, but porcelain's density often makes it more resistant to breakage.
The Real Downsides of Groutless Showers
Burn Thinset Onto Wall
Place a good amount of thinset onto the flat side of your trowel and apply a thin, even layer along the wall where you will be setting your first row of tiles. Burning in thinset promotes better coverage behind your tile installation, and is especially important in a wet area like a shower.
Acrylic does an excellent job of protecting the interiors of your walls because, unlike tile, it's non-porous and has only a few seams. While the tile itself can be excellent at resisting water, grout can present problems over time.
Here's what real homeowners and independent reviewers have flagged as drawbacks as it relates to Kohler's LuxStone product.
How Much Does Kohler LuxStone Cost? Kohler LuxStone costs usually range between $9,000 and $15,000 or more. Most projects fall within this range for full shower replacements including materials, customization, and professional installation.
The best low-maintenance shower walls prioritize seamless or non-porous designs that eliminate mold-prone grout. Top choices include solid-surface panels (like Corian), high-quality acrylic, or composite materials. These options resist staining, require no sealing, and can be easily wiped down with mild, non-abrasive cleaners.