If you have spent any time shopping for tiles, you will have noticed that almost every product is described as either porcelain or ceramic. The two terms are used constantly, often interchangeably, and rarely explained. So what is the actual difference between porcelain and ceramic tiles, and does it matter which one you choose?
It does matter. The right answer depends on where the tiles are going, how much traffic they will take, and what your budget looks like. Here is everything you need to know to make the right call.
Quick Answer
Porcelain is denser, harder, and more water-resistant than ceramic. It works indoors and outdoors, in wet rooms, and on floors with heavy foot traffic. Ceramic is lighter, easier to cut, and usually lower cost — well suited to indoor walls and lighter-use floors. Both look great. The choice comes down to where the tile is going.
What Is the Difference Between Porcelain and Ceramic Tiles?
Both porcelain and ceramic tiles are made from clay fired in a kiln. The key differences come down to the type of clay used, the firing temperature, and what that does to the final product.
Ceramic tiles are made from a less refined clay mixture and fired at lower temperatures. The result is a tile that is lighter, slightly more porous, and easier to work with on site.
Porcelain tiles are made from a more refined, denser clay and fired at temperatures above 1,200°C. This process produces a tile that is harder, less porous, and more resistant to water and wear.
In technical terms, the defining measurement is water absorption. Porcelain must have a water absorption rate below 0.5%. Ceramic typically absorbs between 3% and 7%. That difference has significant implications for where each tile can and cannot be used.
Porcelain vs Ceramic: Side-by-Side Comparison
| Feature | Porcelain | Ceramic |
|---|---|---|
| Water absorption | Below 0.5% | 3 to 7% |
| Hardness | Very high | Moderate |
| Suitable outdoors | Yes (rated porcelain) | No |
| Suitable for wet rooms | Yes | Walls only |
| Ease of cutting | Requires diamond blade | Easier, standard scorer |
| Weight | Heavier | Lighter |
| Cost | Generally higher | Generally lower |
| Lifespan | 20+ years | 10 to 15 years |
| Design range | Wide | Wide |
Where to Use Porcelain Tiles
Porcelain is the more versatile of the two materials. Its low water absorption and high hardness mean it performs reliably across a wide range of environments.
- ✓Bathroom floors and wet rooms. Porcelain handles continuous moisture without absorbing it. It will not harbour mould or crack when water gets behind the surface.
- ✓Kitchen floors. High foot traffic, dropped items, and spills are all handled well by porcelain's dense surface.
- ✓Hallways and living areas. Where durability over many years matters more than ease of installation.
- ✓Outdoor spaces. 20mm porcelain paving rated for external use handles freeze-thaw cycles, rain, and UV exposure. Ceramic cannot.
- ✓Indoor-outdoor continuity. Running the same porcelain tile from inside the home out through bi-fold doors onto a terrace creates a seamless visual flow that ceramic cannot achieve.
Where to Use Ceramic Tiles
Ceramic tiles are not a compromise. In the right application, they are the sensible choice and offer excellent value.
- ✓Bathroom walls. Wall tiles do not bear weight or face the same water immersion as floor tiles. Ceramic performs well here and the lighter weight is an advantage.
- ✓Kitchen splashbacks and walls. Low traffic, no outdoor exposure, and easy cutting makes ceramic straightforward to work with around awkward outlets and fixings.
- ✓Light-use indoor floors. A bedroom or low-traffic room does not need the durability of porcelain. Ceramic is a practical and cost-effective option here.
- ✓DIY installations. Ceramic cuts more easily with standard tools, which makes it more forgiving for less experienced tilers working around complex shapes.
Important
Do not use ceramic tiles outdoors in the UK. Their higher water absorption means moisture enters the tile body. When temperatures drop, that moisture expands and the tile cracks. Porcelain rated for external use is the only appropriate choice for any outdoor project.
Are Porcelain Tiles Harder to Cut?
Yes, and it is worth knowing this before you buy. Porcelain's density, which is the property that makes it so durable, also makes it significantly harder to cut than ceramic.
A standard tile scorer will not cut through porcelain cleanly. You will need a diamond-blade wet saw for straight cuts, or a diamond disc on an angle grinder for curved cuts and notches. If you are tiling yourself and do not have access to this equipment, either factor in the hire cost or consider whether ceramic is the more practical choice for the project.
If you are using a professional tiler, this is less of a concern. Most experienced tilers have the right equipment and account for porcelain cutting time in their quote.
Does Porcelain Cost More Than Ceramic?
Generally, yes. Porcelain tiles cost more to manufacture due to the higher-grade materials and more energy-intensive firing process. That price difference is real, and for a large project it adds up.
However, cost per square metre is not the only number that matters. A porcelain floor tile that lasts 25 years without needing replacement is often the more economical choice over a 10-year period than a cheaper ceramic that needs relaying. For high-traffic areas, floors, and anywhere that takes real punishment, porcelain's longevity usually justifies the upfront difference.
For bathroom walls and kitchen splashbacks, where durability is less of a factor, ceramic offers very good value and there is no strong argument to pay the premium for porcelain unless you specifically want it.
Which Should You Choose? A Simple Decision Guide
- →Tiling outdoors? Porcelain, every time. Ceramic is not suitable.
- →Bathroom or wet room floor? Porcelain. The low water absorption is essential.
- →Bathroom walls? Either works. Ceramic is lighter and easier to install; porcelain gives more longevity.
- →Kitchen floor? Porcelain for high-traffic kitchens. Ceramic for lighter use.
- →Kitchen splashback? Either. Ceramic is the practical choice here.
- →Doing it yourself and new to tiling? Ceramic is more forgiving to cut and work with.
- →Want to run the same tile indoors and out? Porcelain is the only material that makes this possible.
The Bottom Line
Porcelain and ceramic tiles are not competing products — they are different tools for different jobs. Porcelain is the stronger, more water-resistant, and more versatile choice. Ceramic is lighter, easier to cut, and well suited to wall applications and lighter-use indoor spaces.
For most floor tiling projects, wet areas, and anything going outside, porcelain is the right call. For bathroom walls, kitchen splashbacks, and budget-conscious indoor projects, ceramic delivers excellent results.
At Tiles on Top, we stock both. Browse our wall & floor tiles and outdoor porcelain paving ranges, or get in touch if you want a recommendation for your specific project. We are happy to help you choose the right tile the first time.