Is Ceramic or Porcelain Tile Better for Bathroom Floors?

Key Takeaways

Porcelain tile is the better choice for shower floors and high-moisture bathroom applications because of its lower water absorption rate
Ceramic tile is a practical, cost-effective option for bathroom floors outside the shower and bathroom wall tile
The technical difference — porcelain absorbs less than 0.5% water vs. ceramic’s 3–7% — is the core reason porcelain performs better in constant wet conditions
Both materials are available in American-made options from brands like Shaw and Emser, carried by Leicester Flooring in Asheville and Hendersonville
For most WNC bathroom renovations, porcelain in the shower and ceramic or porcelain on the main floor is the right combination

Walk into our Asheville or Hendersonville showroom and browse the tile section, and you’ll find both ceramic and porcelain tile available across a range of formats, colors, and price points. From a distance, many of them look nearly identical. So does the difference actually matter, and which one belongs in a bathroom?

The short answer: yes, the difference matters, and where in the bathroom you’re installing determines which one you should use. This article explains the technical distinction clearly and gives you a practical framework for choosing.

The Core Technical Difference

Both ceramic and porcelain are made from clay and fired in a kiln. The distinction comes from the clay composition, the firing temperature and pressure, and the resulting density of the finished tile.

Ceramic tile uses natural clay fired at moderate temperatures. The result is a somewhat porous material. Most ceramic tile has a glazed surface coating that reduces water absorption at the top, but the underlying body of the tile still absorbs water if the glaze is compromised or if water sits in grout joints long enough.

Water absorption rate for ceramic: typically 3% to 7% by weight.

Porcelain tile uses a more refined, feldspar-rich clay pressed under higher pressure and fired at higher temperatures. The result is a denser, harder tile with significantly lower porosity — not just at the surface, but throughout the tile body.

Water absorption rate for porcelain: less than 0.5% by weight, per ANSI standards.

That single number — 0.5% vs. up to 7% — is what drives most of the practical differences between these two materials in bathroom applications.

Why Water Absorption Rate Matters in Bathrooms

In a bathroom, some surfaces are wet every day. A shower floor gets wet every time someone showers. The water sits in grout joints, contacts the tile surface, and over time, the cumulative moisture exposure adds up significantly.

A tile with 5% to 7% water absorption in a shower floor environment gradually absorbs moisture into its body over the years. In a climate like WNC’s, where homes experience significant humidity swings between seasons, the absorbed moisture expands and contracts as the tile heats and cools. Over time, this contributes to grout cracking, tile movement, and, in the worst cases, tile failure.

Porcelain’s near-zero absorption rate means it doesn’t accumulate moisture in the tile body. It stays dimensionally stable. It doesn’t contribute to grout joint stress from moisture cycling. This is why professional tile contractors recommend porcelain for shower floors and other constant-wet applications.

Application-by-Application Breakdown

Shower Floor

Recommendation: Porcelain

The shower floor is the highest-moisture-exposure surface in any home. It’s wet every day, the water sits in grout joints while the shower is in use, and the floor is rarely fully dry for long between uses. Porcelain’s low absorption rate is the right choice here. Use an unglazed or matte-finish porcelain (not polished) for traction.

According to the Tile Council of North America, porcelain tile is specifically recommended for high-moisture, high-traffic applications, and shower floors qualify on both counts.

Shower Walls

Recommendation: Porcelain or glazed ceramic

Shower walls are vertical, which means water runs off rather than pooling. The exposure is significant but less extreme than the floor. Both glazed ceramic and porcelain perform well on shower walls. Many homeowners use large-format glazed porcelain on shower walls for the low-maintenance, easy-clean surface and the visual appeal of fewer grout lines. Glazed ceramic is a viable, more cost-effective alternative.

Main Bathroom Floor (Outside the Shower)

Recommendation: Either ceramic or porcelain

The main bathroom floor outside the shower area gets much less moisture exposure than the shower floor. Wet feet walking across it, occasional splashing, and bathroom humidity are the primary exposures. Both ceramic and porcelain handle these conditions reliably.

For most WNC homeowners updating a standard bathroom floor, a PEI 3 or higher glazed ceramic is a practical, cost-effective choice. Upgrading to porcelain on the main floor is absolutely worthwhile if your budget allows and you want the added durability.

Check the PEI rating on any ceramic floor tile: PEI 3 is the minimum for residential bathroom floors. PEI 1 and 2 tiles are wall-only products and should never be installed on floors.

Bathroom Wall Tile (Behind Vanity, Accent Walls)

Recommendation: Either — wall tile criteria apply

Wall tile in low-moisture areas like behind a vanity or on a decorative bathroom accent wall doesn’t face the durability demands of floor tile. Ceramic wall tile is common here because of the wider range of decorative formats, colors, and finishes available compared to floor-rated materials.

Note that wall tile is not rated for floor use. Floor-and-wall rated tile exists and works in both applications, but standard wall tile on a bathroom floor is not appropriate.

Cost Comparison

Porcelain tile generally costs more than ceramic tile, both in material cost and sometimes in installation cost (because porcelain is harder and requires diamond blades for cutting). The cost difference varies by product line and format, but across comparable styles, porcelain typically runs higher.

For shower floors, the performance advantage of porcelain justifies the additional cost. For main bathroom floors, the choice between ceramic and porcelain is more of a value judgment between cost savings now and slightly better long-term performance.

If you’re weighing the budget across a full bathroom renovation, one common approach: invest in porcelain for the shower floor and walls, and use a high-quality ceramic on the main bathroom floor. This gives you the best performance where it matters most and manages cost on the larger square footage of the main floor.

Contact us for a free in-home measure where we can discuss specific product recommendations based on your bathroom and budget.

The Look: Can You Tell the Difference?

In most cases, no. Modern ceramic and porcelain tile are manufactured in nearly identical visual styles. The realistic wood-look, stone-look, and large-format aesthetics that are popular in WNC bathrooms right now are available in both materials.

There are some patterns to the availability:

Large-format tile (18×18 and larger) is almost exclusively porcelain. The manufacturing process that produces porcelain’s density also supports larger format production without warping during firing.

Wood-look tile and realistic stone patterns are predominantly porcelain. The high-definition digital printing used for realistic patterns adheres better to porcelain’s smooth, dense surface.

Decorative and artisan tile — hand-painted, textured, and specialty formats — is commonly ceramic. The material is easier to work with in smaller batch specialty production.

Browse our tile inspiration gallery to see how both materials look in real WNC bathroom settings.

Identifying Porcelain vs. Ceramic

When you’re shopping, a few ways to verify what you’re actually looking at:

Check the product specification sheet. Water absorption rate is listed on every tile’s spec sheet. Less than 0.5% = porcelain per ANSI A137.1. Higher = ceramic.

Look at the tile edge. The body of unglazed porcelain is often a consistent, typically light gray or white color throughout. The body of the ceramic is often reddish or buff-colored clay visible at the cut edge.

Look for a “porcelain” designation from the manufacturer. Most reputable tile manufacturers clearly label their products. When you shop at Leicester Flooring, our team can confirm the classification and water absorption specifications for any product.

Our tile flooring products page lists both ceramic and porcelain options in our American-made selection.

Frequently Asked Questions

Can I use ceramic tile in my shower?

Glazed ceramic works on shower walls. For shower floors, porcelain is strongly recommended because of its lower water absorption. If you install glazed ceramic on a shower floor, the higher absorption rate of the tile body increases the risk of moisture-related problems over time, particularly in WNC’s humid climate.

Is porcelain tile harder to clean than ceramic?

No. Porcelain’s denser, less porous surface is actually slightly easier to clean because it absorbs fewer staining compounds. Both materials should be cleaned with pH-neutral products to protect the glaze and grout.

Does Leicester Flooring carry both ceramic and porcelain?

Yes. Our Asheville and Hendersonville showrooms carry American-made ceramic and porcelain tile from brands including Shaw, Emser, Armstrong, and Mannington. We carry both because both have appropriate applications, and we help you choose the right one for your specific use. Browse our tile flooring catalog.

Is through-body porcelain better than glazed porcelain?

Through-body porcelain has consistent color throughout the tile’s thickness, so chips and wear are less visible over time. It’s a good choice for floor applications in high-use areas. Glazed porcelain has a surface coating that provides the color and finish, and it’s excellent for both floors and walls. The right choice depends on the application and aesthetic you’re after.

How do I choose between ceramic and porcelain if I’m on a tight budget?

In that scenario, use porcelain in the shower floor (non-negotiable for performance), and evaluate quality glazed ceramic for the main bathroom floor and shower walls. That combination gives you performance where it matters most while managing the per-square-foot cost on the larger surface area.

Summary

Ceramic and porcelain tile look similar but perform differently in high-moisture conditions. Porcelain’s lower water absorption rate makes it the right choice for shower floors and other constantly wet applications. Ceramic performs reliably on bathroom walls and main bathroom floors with lower moisture exposure, and it costs less.

For most WNC bathroom renovations, using porcelain in the shower and quality ceramic or porcelain on the main floor gives you the right performance in each area at a reasonable overall cost.

Leicester Flooring carries both materials in American-made product lines. Our team can walk you through specific options for your bathroom at our Asheville showroom or Hendersonville showroom, or we can bring samples to your home during a free in-home measure.