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Napoli Grey & White Marble Effect Polished Porcelain Tile
Cool, contemporary and unmistakably high-end, Napoli Grey recreates the look of soft grey Italian marble in a porcelain that's built to take daily life. A crisp white base carries flowing grey movement with fine gold accents, printed across 10 different faces so the veining never repeats next to itself. The polished surface bounces light around a room, making smaller bathrooms feel larger and brighter and giving open spaces a calm, gallery-like finish.
Laid in a 60x120cm rectified format, the tiles butt up with hairline grout joints for a near-continuous sheet of marble across walls and floors. At 9mm and underfloor-heating ready, Napoli Grey suits everything from a full wet-room scheme to a single statement feature wall.
Why choose Napoli Grey over natural marble
- Non-porous & stain-resistant — won't etch or mark from water, wine or bathroom products the way real marble does.
- No annual resealing — the grey veining sits under a sealed glaze, not in soft, absorbent stone.
- Cooler tone, brighter room — the grey-on-white palette reads clean and modern and reflects light beautifully.
- Rectified edges — precision-cut for tight 2–3mm joints and a seamless, designer finish.
Key specification
- Size: 60 x 120cm (large format)
- Thickness: 9mm
- Material: Glazed porcelain
- Finish: Polished (gloss)
- Colour: White with grey & gold veining
- Edge: Rectified
- Use: Walls & floors, interior
- Slip rating: R9
- Wear rating (PEI): 3
- Underfloor heating: Suitable
- Face variations: 10
- Coverage: 1.39 tiles per m² · 2 tiles per box (1.44m²)
- Box weight: approx. 13kg
- Also available in: Gold & White colourway
Where Napoli Grey works best
The cool palette is a natural fit for modern bathrooms and en-suites, where the gloss and light grey tones keep the space feeling bright and open. It also sits well in monochrome kitchens, utility rooms and hallways, and pairs cleanly with chrome or matt-black brassware, white sanitaryware and grey or anthracite cabinetry. As a polished tile it's for interior use — pair it with a matt or textured tile for shower trays and step-in zones that need more grip.
Care & sealing
Porcelain is far lower-maintenance than stone, but on a polished tile a single coat of impregnating sealer after fitting helps shed grout haze and keeps the gloss easy to wipe clean. Day to day, warm water and a pH-neutral cleaner is all it needs — steer clear of acidic or bleach-heavy products that can dull a polished surface over time.
Free samples & fast UK delivery
Order a cut sample to check the grey tone against your walls and lighting before you buy. Full orders ship on pallet across mainland UK, with trade pricing through TS Decor on larger jobs.
Frequently asked questions
What grout colour works best with grey marble-effect tiles?
A light or mid grout that sits between the white base and the grey veining gives the most seamless look. A bright white grout sharpens the contrast and frames each tile, while a soft grey almost disappears for a continuous marble effect — both work well, it comes down to whether you want the joints to read or recede.
Can I tile a whole bathroom in Napoli Grey, walls and floor?
Yes. It's rated for both interior walls and floors, so you can run it floor-to-ceiling and across the floor for a wraparound marble look. For shower floors specifically, pair it with a matching matt or anti-slip tile, as the polished finish is R9.
Is this similar to Carrara marble?
It's in the same family of looks — a white base with grey veining — but with finer gold threads running through it. Compared to real Carrara, Napoli Grey is harder, non-porous and won't etch, and it costs a fraction of the price per square metre.
Do polished porcelain tiles need sealing?
The tile body doesn't, because porcelain is non-porous — but a one-off impregnating sealer on a polished tile helps repel grout staining during fitting. You'll never need the repeated resealing that natural marble demands.
How do I work out how many tiles to order?
Each tile covers 0.72m². Take your area in m², add around 10% for cuts and breakages, then divide by 0.72 for the tile count — or use the area calculator on this page to do it automatically.
- Thickness: 9mm
- Finish: Polished
- Floor or Wall: Both
- Size: Large (60x120cm)
- Rectified: Yes
- Suitable for Underfloor Heating: Yes
- Box Quantity: 2
- Weight: 13KG
- Sale By: Per Sqm
How do I measure my room for tiles?
Are these tiles suitable for underfloor heating?
Do I need to seal these tiles?
Doing a whole room?
Use our free Tile Calculator — enter your wall and floor measurements, deduct doors and windows, and we'll work out exactly how many boxes you need, plus 10% for wastage.
