Porcelain vs Ceramic Tiles: Which Should You Choose?
Porcelain vs Ceramic Tiles: Which Should You Choose?
Whether you are embarking on a sleek bathroom renovation, designing a durable kitchen floor, or planning an outdoor alfresco area, selecting the right tile is one of the most important decisions you will make. It usually comes down to one question: ceramic or porcelain?
While porcelain and ceramic tiles both belong to the same clay-based ceramic family, their manufacturing processes, performance characteristics, and practical applications differ significantly. Understanding the subtle yet important difference between porcelain and ceramic tiles will help you choose the ideal material for your space, budget and lifestyle.
This National Tiles guide compares the key properties of porcelain vs ceramic tile side by side, with application-specific advice for Australian homeowners and tradies. You can also browse the full collection of wall and floor tiles while you weigh up your options.
What is Ceramic Tile?
Ceramic tiles are crafted from a blend of natural red, brown or white clay, sand and water. Once shaped, the tiles are fired in a kiln at temperatures ranging between 1000 and 1100 degrees Celsius.
Most ceramic tiles feature a decorative glass glaze baked onto the surface. This top layer provides colour, pattern and initial water resistance, while the clay body beneath remains comparatively porous.
Key Characteristic: Ceramic tiles are lightweight and easier to cut.
Best for: Indoor walls, kitchen splashbacks, decorative accents and low-traffic areas.
Explore the ceramic tile collection, or start with one of our favourites: the Trulli Avorio Tile, inspired by the rustic stone of southern Italy.
What is Porcelain Tile?
Porcelain is actually a specialised, ultra-refined subset of ceramic. It is made from fine kaolin clay, feldspar, and finely ground quartz, compressed under immense hydraulic pressure before being fired at extreme temperatures - often exceeding 1200 to 1400 degrees Celsius.
This intense manufacturing process causes the materials to vitrify (to become glass-like), creating an exceptionally dense, hard, and virtually non-porous tile structure.
Key Characteristic: Extreme density and incredible structural strength.
Best for: High-traffic floors, outdoor alfresco, bathrooms and heavy commercial environments.
Browse the complete porcelain range from National Tiles. We particularly admire the soft, natural look of the Norr Melk Tile, with its Ceppo di Gré-inspired finish that brings texture and character to bathroom spaces.
Key Differences: Ceramic and Porcelain
To determine whether porcelain versus ceramic is right for your project, let's compare how they perform across five core performance categories.
1. Water Absorption & Moisture Resistance
Water absorption rate is the ultimate technical factor when deciding between porcelain vs ceramic.
Porcelain: Must have a water absorption rate of less than 0.5% according to international standards. It is virtually impervious to moisture, making it ideal for Australian shower floors, steam rooms and rain-exposed outdoor areas.
Ceramic: Generally absorbs more than 3% moisture, and wall tiles are often considerably higher. While the surface glaze is waterproof, the underlying clay body can absorb moisture if water penetrates through unsealed grout lines or chips.
2. Density, Durability & PEI Ratings
Durability is determined by firing temperature and material density. Tile hardness is frequently measured using the Porcelain Enamel Institute (PEI) rating scale from 0 (wall-only) to 5 (heavy commercial foot traffic).
Porcelain: Scores PEI 4 or PEI 5. It handles heavy foot traffic, dropped pots, moving furniture, and claws without scratching or fracturing easily.
Ceramic: Usually scores PEI 0 to PEI 3. Ceramic tiles are softer and more prone to chipping under heavy impact, making it best suited for walls or light-footwear residential floors.
What happens if a tile chips?
If one of your glaze-only ceramic tiles chips, the uncovered red or white clay 'biscuit' shows through, whereas a chipped porcelain tile keeps the same appearance because its colour is consistent throughout the entire tile.
3. Cost & Installation Considerations
When planning your renovation budget, both material cost and trade installation expenses must be factored in:
Porcelain: Higher material cost due to refined raw components and energy-intensive manufacturing. Because porcelain is so dense, it requires specialised diamond-blade wet saws, specific porcelain adhesives and experienced installers - which can increase overall labour costs. Despite these cost restraints, porcelain can be a stunning choice: consider the Taj Mahal Oyster Polished Tile.
Ceramic: Generally more affordable per square metre. Because it is softer, trade installers or confident DIYers can cut ceramic easily with a standard manual tile cutter. Affordability does not have to trade on style, though: consider the Stone Code Nero Matt Tile.
4. Climate & Outdoor Suitability
Australia's climate demands serious durability, from scorching summer UV heat to frost cycles in the highland regions. With such variability, you need to consider the right type of product for your home and your climate.
Porcelain: Outstanding thermal stability. Porcelain tiles will not crack during rapid temperature shifts and stand up effortlessly to intense UV exposure.
Ceramic: Unsuited for unroofed outdoor environments, though some ceramic tiles are rated for covered alfresco areas. Absorbed moisture can expand under heat or contract in freezing conditions, causing internal cracking or glaze popping.
5. Slip Resistance & Safety Ratings
Slip resistance is rated separately from material type, using the Pendulum test scale from P0 to P5. Both porcelain and ceramic are available in slip-rated finishes, so check the rating rather than assuming the material decides it.
As a guide, P3 suits bathroom floors, P4 suits shower areas, and P5 is intended for pool surrounds and ramps. You will find the Pendulum rating on National Tiles product pages, so you can match the tile to the room before you buy.
Ceramic vs Porcelain: Compare Your Options
| Property | Ceramic Tiles | Porcelain Tiles |
|---|---|---|
| Water Absorption Rate | More than 3% | Less than 0.5% |
| Firing Temperature | ~1,000°C to 1,100°C | ~1,200°C to 1,400°C |
| Body Composition | Coarser clays and minerals | Fine kaolin clay, quartz and feldspar |
| PEI Rating Range | PEI 0 to 3 | PEI 4 to 5 |
| Outdoor Usability | Indoor, plus covered outdoor areas if rated | Indoor and outdoor compatible |
| Cutting and Handling | Easy (standard manual cutters) | Requires diamond blades and special tools |
| Price Point | Budget to mid-range | Mid-range to premium |
Which Should You Choose?
Now that you know what is different between porcelain and ceramic tiles, let's look at the practical layout applications so you can make a confident selection.
Choose Porcelain For:
- Outdoor Alfresco Spaces and Pool Surrounds
External porcelain pavers withstand heavy rain, direct sunlight and pool chemicals without fading or eroding. - High-Traffic Floors
Hallways, open-plan living rooms and busy family kitchens require porcelain's impact resistance. - Wet Rooms & Shower Bases
Continuous exposure to water demands porcelain's near-zero absorption rate to prevent structural moisture damage over time.
Browse the premium porcelain tile range or the weather-resistant porcelain pavers built for outdoor use. You can order up to five samples for $9.95, delivered Australia-wide, to see how they look in your own space.
Choose Ceramic For:
- Feature Walls & Splashbacks
Kitchen splashbacks, laundry walls and decorative bathroom feature walls don't experience foot traffic, making ceramic an economical, beautiful choice. - Budget-Conscious Renovations
If you want to update large wall surfaces on a sensible budget, ceramic delivers maximum aesthetic impact per dollar spent. - DIY Projects
If you are tackling a self-installed laundry wall or ensuite splashback, ceramic tiles are much easier to measure, cut and adjust on site.
Looking for lightweight, stylish wall options for your home?
Browse the decorative ceramic tile collections, and order samples before you commit.
Frequently Asked Questions
Can ceramic tiles be used outdoors in Australia?
Generally, we would not recommend this. Standard ceramic tiles are not designed for exposed outdoor environments. Because ceramic absorbs more than 3% moisture, extreme sun, heavy rain or thermal changes can cause tiles to warp, glaze-crack or pop off the substrate. Some ceramic tiles are rated for covered alfresco areas, but for anything exposed, always opt for exterior-rated porcelain.
Is porcelain much harder to cut for DIY installation?
Yes. Porcelain is significantly denser than ceramic. Cutting porcelain cleanly requires specialised equipment, such as a continuous-rim diamond blade wet saw and specific porcelain-rated drill bits for pipe cutouts.
Can you mix porcelain and ceramic tiles in the same room?
Yes. A popular Australian design strategy is to use tough porcelain tiles on the bathroom floor where moisture and foot traffic are highest, while installing cost-effective, stylish ceramic tiles on the walls up to the ceiling.
Confident Tile Selection Starts Here
Choosing between porcelain vs ceramic comes down to matching the material's natural strengths with your room's practical needs. Focus on high-density porcelain for floor zones, wet areas and outdoor living space, while taking advantage of ceramic's budget versatility and rich glazes on internal feature walls.
Have questions about the right tiles for you? Read our guide to tile sizes and thickness, or if you are tackling a DIY project, brush up with How to Tile a Bathroom.
Browse all National Tiles collections in the online shop, and take inspiration from the Digital Showroom and its broad range of porcelain, ceramic and other tile options.