Porcelain or Ceramic Bathroom Tiles: An Honest Guide

The actual difference: water absorption

Both are fired clay. Porcelain is made from a finer, denser clay body fired at a higher temperature, which gives it a water absorption rate of 0.5% or less. Standard ceramic typically sits somewhere between 3% and 10%. That is the whole technical story, and everything else follows from it.

A denser body means porcelain is harder, less prone to chipping, and unbothered by damp. It also means it is heavier and slower to cut, which matters when we are working around a soil pipe boxing or an awkward reveal. Ceramic is softer, lighter and far kinder to a manual cutter, which is why it remains a sensible choice on walls.

Floors versus walls: where we actually draw the line

For bathroom floors we specify porcelain almost every time. A bathroom floor takes foot traffic, dropped shampoo bottles and standing water, and ceramic simply is not built for that combination. Check the PEI rating on the box: PEI 3 or above for a domestic bathroom floor, and for a wet room or a shower tray area look for a slip rating of R10 or better, or a textured porcelain designed for wet use.

Walls are where you can relax. A ceramic wall tile behind a basin or bath will last decades and costs noticeably less. The exception is a full wet room, or a large-format wall tile, because big ceramic tiles are more likely to bow or chip at the edge during handling and fitting.

One thing we flag regularly in older Ipswich properties, particularly the Victorian terraces around Norwich Road and the interwar semis in Rushmere: suspended timber floors move. Porcelain is unforgiving of movement, so the substrate work matters more than the tile choice. That usually means overboarding with a tile backer board or a decoupling matting rather than tiling straight onto chipboard.

• Bathroom floor: porcelain, PEI 3+, R10+ if it gets genuinely wet
• Bath and basin splashback walls: ceramic is perfectly adequate
• Wet room floor and walls: porcelain throughout, with proper tanking
• Small cloakroom with low traffic: ceramic floor is defensible if budget is tight

What it costs, and where the money really goes

Tile prices vary enormously by range, but as a rough guide you will find serviceable ceramic wall tiles from around £15 to £30 per square metre, and porcelain floor tiles more commonly in the £25 to £60 range, with large-format and stone-effect options running well beyond that. Those are showroom figures and depend heavily on the range and whether it is a current line.

Here is the part that surprises people: the tile is often the smaller half of the bill. Labour, adhesive, tanking, backer boards and trims add up, and porcelain takes longer to fit because cutting is slower and large formats need a flatter substrate. A 4 square metre bathroom floor in a straightforward layout is a different job to the same area with a shower former, three pipe cutouts and a threshold.

Because of that, choosing cheaper tiles rarely saves as much as homeowners expect. If you are trimming a budget, reducing the tiled area or picking a simpler layout usually saves more than downgrading the material.

Practical things worth checking before you buy

Bring a sample home and look at it in your own bathroom light. Suffolk bathrooms often have a single small window or none at all, and a tile that looked warm under showroom halogens can turn grey and flat under an LED spot.

Also check whether the tile is rectified, meaning mechanically cut to a precise edge. Rectified porcelain allows narrow grout joints of 2 to 3mm and looks crisper, but it demands a flatter floor and there is nowhere to hide. Non-rectified tiles need a slightly wider joint and are more forgiving.

• Order 10% extra for cuts and breakages, more for herringbone or diagonal layouts
• Check the batch or shade code matches across all boxes
• Ask whether the range is being discontinued, so a future repair is possible
• Confirm the tile weight per square metre if you are tiling onto a stud wall