Porcelain or Ceramic Tiles for a Bathroom Floor?

The real difference between porcelain and ceramic

Both are clay tiles fired in a kiln, but porcelain is made from finer clay and fired at a higher temperature, typically around 1,200 to 1,400 degrees. That makes it denser and far less porous. A true porcelain tile absorbs less than 0.5 per cent of its weight in water, whereas standard ceramic can absorb 3 per cent or more.

For a bathroom floor that matters. Water will find its way onto the floor daily, whether from wet feet, an over-enthusiastic shower or a splashing toddler. Porcelain shrugs it off. Ceramic relies more heavily on its glaze, and if that glaze chips or wears, the softer body underneath can take on moisture and stain.

Which is tougher underfoot

Porcelain wins on durability, and it is not close. Ceramic floor tiles are fine in a low-traffic en-suite, but in a busy family bathroom the glaze on cheaper ceramic can dull or scratch within five to ten years. Porcelain is usually full-bodied or through-coloured, so even a chip is far less visible.

The trade-off is workability. Porcelain is hard enough that it needs a diamond blade and a wet cutter to shape cleanly, and awkward cuts around soil pipes and door frames take longer. That is one reason porcelain installations cost a little more in labour, not just materials.

• Porcelain: best for family bathrooms, wet rooms and anywhere with heavy daily use
• Ceramic: perfectly adequate for guest bathrooms, cloakrooms and en-suites used occasionally
• Either way, check the slip rating: look for R10 or above, or a matt or textured finish, for wet areas

What it costs in practice

As a rough guide for the Suffolk area, decent ceramic floor tiles start around £15 to £25 per square metre, while good porcelain typically runs £25 to £50 per square metre, with large-format or stone-effect porcelain going higher. Fitting costs depend on tile size, the state of your subfloor and how many cuts the room demands, but expect porcelain to add somewhat to labour because of the cutting time.

One cost people forget is preparation. Many older Ipswich properties, particularly Victorian terraces around the town centre, have timber subfloors that flex. Both tile types will crack on a bouncy floor, so budget for overboarding with cement backer board or a decoupling matting first. Skipping that step is the most common cause of cracked tiles we get called out to fix.

Underfloor heating and cold mornings

Both materials work well over electric underfloor heating, and it is a popular addition during bathroom refits here given how cold tiled floors feel from October onwards. Porcelain's density means it holds and spreads heat slightly more evenly, though in a typical domestic bathroom the difference is modest.

If you are not fitting heating, bear in mind porcelain feels marginally colder underfoot than ceramic. A washable bath mat solves most of that, but it is worth knowing before you commit to a large-format porcelain floor in a north-facing bathroom.

Our honest recommendation

For most bathroom floors we fit, porcelain is worth the extra outlay. The gap in price has narrowed in recent years, and the gain in durability and water resistance means you are far less likely to be re-tiling in a decade. If the budget is tight, spend on porcelain for the floor and save with ceramic on the walls, where tiles take no foot traffic and water exposure is lighter.

Whichever you choose, insist on proper tanking in shower areas, a flat and rigid subfloor, and a flexible adhesive and grout rated for wet rooms. The tile itself is rarely what fails; the preparation underneath it is.