How to choose tile for a bathroom, kitchen, floor, or terrace

1. Write a short technical brief

Record five things: wall or floor; dry, wet, or exterior environment; light, residential, or heavy traffic; format and pattern; cleaning routine. This immediately removes many unsuitable collections.

Also note underfloor heating, waterproofing, a timber or other moving substrate, existing tile, and complicated junctions. Tile cannot fix a weak substrate, and adhesive and movement joints must suit the complete assembly.

2. Bathroom: water, grout, and safety

On bathroom walls, prioritise cleanability, colour stability, and compatibility with the adhesive and grout. On the floor, add slip performance: a glossy smooth surface can be a poor choice where water regularly stands.

Mosaic gives more joints and follows shower slopes well, but grout quality becomes critical. Large porcelain reduces joints, yet demands a very flat substrate, accurate cutting, and a planned slope.

• Check slip performance for floors.
• Do not confuse tile water resistance with construction waterproofing.
• Plan niches, access panels, and slopes before ordering tile.

3. Kitchen and hallway: stains, grit, and abrasion

A glazed ceramic tile is often suitable for a kitchen backsplash: it is easy to wipe and a smaller format can work around outlets and cabinets. Kitchen and hallway floors need resistance to abrasive dirt, easy cleaning, and a surface without an excessively deep texture.

Large quiet slabs reduce grout, but every edge cut becomes more visible. Small formats handle a complex plan more easily but create more grout. Test patterns on the real room dimensions, not only on a square sample board.

4. Heated floors and living spaces

With underfloor heating, all layers must work together: substrate, heating element, adhesive, tile, and joints. Ceramic and porcelain transfer heat well, but that does not remove the need for substrate preparation, movement joints, and the manufacturer’s first-heating schedule.

In a living room or bedroom, scale and feel may drive the design. A matte surface is often easier to live with, while rectified edges create a thinner visual joint only when installation is precise and the product allows it.

5. Terrace and exterior: frost, water, and slip

Exterior tile should be explicitly approved by the manufacturer for outdoor use and freeze-thaw cycles. Check absorption, slip performance, thickness, format, and the specified fixing system: bonded, pedestal, and other methods have different requirements.

Water must have a path away from an open terrace. Even frost-resistant tile can fail when water remains beneath the surface or when slope and movement joints are missing.

• Outdoor tile is not simply “stronger tile”.
• Check frost resistance and installation method in the technical sheet.
• Coordinate tile with substrate, waterproofing, slope, and joints.

6. Format and pattern: test them on the real plan

Format changes the number of cuts, element weight, and flatness requirements. A 1200×600 mm tile may create a calm wall, or leave awkward strips at a door and niche. Mosaic solves geometry but increases grouting and sheet alignment.

Use a scaled layout before buying. It shows whether the pattern crosses corners, where cuts land, how grout relates to furniture, and how many pieces the pattern actually consumes.

• Check complete tiles, not area alone.
• Record shade, calibre, and pattern direction.
• Allow for the pattern and cutting complexity.

Final checks before you pay

Ask for the technical sheet, a sample, and adhesive and grout recommendations. Record the collection, shade, calibre, and batch. If several rooms use the same tile, confirm that the same shade can be sourced later.

A good choice balances appearance, use, installation, and maintenance. When those four parts agree before ordering, the tile performs predictably and looks intentional.

Sources and technical documents

• Marazzi — choosing porcelain stoneware by use
• Mapei — large-format floor and wall mortar