For most floors and wet areas, buy porcelain. For walls and splashbacks, ceramic is genuinely fine — and easier to cut, which matters more than people think if you're doing the job yourself. That's the verdict in one line. The detail is worth reading, because the choice usually comes down to one thing the spec sheets bury: how hard the tile is to cut.
Key Takeaways
- Porcelain is denser, tougher, and water-resistant — the default for floors, wet rooms, and high-traffic areas.
- Ceramic is softer, easier to cut, and cheaper — fine for walls and splashbacks.
- The technical difference: porcelain absorbs 0.5% water or less (EN 14411). Ceramic absorbs more.
- The DIY dealbreaker: porcelain is much harder to cut. Factor in a better cutter — or a wet saw — before you choose it.
- Match the tile to the job, not to whichever sounds posher.
The one real difference: water absorption
Strip away the marketing and the difference between porcelain and ceramic comes down to density and water absorption.
Both are made from clay and fired in a kiln. Porcelain uses a finer, denser clay fired at a higher temperature, so the finished tile is harder and barely absorbs water. The technical line, set by the UK and European standard EN 14411, is this: a tile only counts as porcelain if it absorbs 0.5% or less of its weight in water. Standard ceramic absorbs more — sometimes a lot more.
Everything else — how it cuts, where it belongs, how long it lasts — flows from that one property.
Cutting difficulty: the bit DIYers get wrong
This is the part the showroom won't tell you, and it's the one that matters most if you're laying the tiles yourself.
Ceramic cuts easily. A standard glazed ceramic wall tile scores and snaps cleanly on a basic manual cutter. It's forgiving — the kind of tile I'd put in front of anyone tiling for the first time.
Porcelain fights back. It's harder and more brittle, so a cheap cutter will crack it, wander off the score line, or leave a ragged edge. For porcelain you want a quality manual cutter with a sharp scoring wheel and a solid breaking mechanism. For large or thick porcelain, a manual cutter often won't cope at all and you're into wet saw territory (a wet saw being the water-cooled, diamond-blade cutter that grinds through anything).
If you've picked porcelain, sort the cutting out before you buy a single tile:
- How to choose a tile cutter — what to look for and what to avoid.
- Sigma vs RUBI — the two manual cutters worth your money for porcelain.
- Best wet saw for tiling — for big porcelain, diagonal cuts, and L-shapes a manual cutter can't make.
I've watched more DIY jobs stall over porcelain cutting than anything else. The tile's fine. The cutter wasn't up to it.
Durability and traffic: where porcelain earns its keep
Because porcelain is denser, it's harder-wearing. That shows up in the PEI rating — a 1-to-5 scale (from the Porcelain Enamel Institute) for how well a tile's surface resists wear underfoot.
- PEI 1–2: walls and very light use only.
- PEI 3: bathrooms, bedrooms, normal domestic floors.
- PEI 4: kitchens, hallways, busy open-plan rooms.
- PEI 5: commercial.
For a bathroom floor, look for PEI 3 or above; for a kitchen or hallway, PEI 4. Porcelain reaches those ratings comfortably. A lot of ceramic is wall-rated and simply too soft for a floor that gets real use — so if you do want ceramic on a floor, check the PEI rating rather than assuming.
Water and frost: porcelain wins outright
That 0.5% water absorption figure isn't just a spec — it's why porcelain belongs in wet and cold places.
- Wet rooms and shower floors: porcelain shrugs off constant wetting.
- Outdoors, patios, frost-prone areas: water that soaks into a porous tile expands when it freezes and cracks it. Porcelain barely absorbs water, so it's frost-proof. Most ceramic isn't.
One thing worth saying plainly: no tile waterproofs a shower on its own. Water gets through grout over time, so the waterproofing behind the tile is what protects the wall. Whether you pick porcelain or ceramic, tank the wet areas first — it's the first step in the complete bathroom tiling guide.
Where ceramic is genuinely the right call
Porcelain isn't automatically the answer. Ceramic is the sensible pick when:
- It's a wall or splashback. No foot traffic, no frost, no standing water. Ceramic does the job and cuts like a dream.
- You're new to tiling. The easier cutting builds confidence on a first job.
- Budget matters. Ceramic is usually cheaper, both to buy and because you don't need as much cutter to handle it.
Paying the porcelain premium for a kitchen splashback that'll never be walked on is money and effort spent for nothing.
Price
As a rule, ceramic is cheaper than porcelain, though there's huge overlap — a designer ceramic can cost more than a budget porcelain. The hidden cost with porcelain isn't just the tile: it's the better cutter or wet saw you need to cut it cleanly. Factor that into the comparison.
Whatever you choose, buy about 10% more than your measured area for cuts, breakages, and a spare box for repairs. Work out your quantity with the tile calculator.
The verdict
- Floors, wet rooms, hallways, outdoors: porcelain. Tougher, water-resistant, frost-proof.
- Walls and splashbacks, lighter use, tighter budget, first-time job: ceramic. Cheaper and far kinder to cut.
- Either way: match the cutter to the tile, check the PEI rating for floors, and tank your wet areas.
Pick the tile for the job in front of you, not for the name on the box. A well-laid ceramic wall beats a porcelain floor you cracked half of trying to cut.