Which marble should you choose for a home
For a kitchen and a bathroom floor, pick a dense marble with a matte finish: honed Nero Marquina or Crema Marfil. White Calacatta and Statuario, polished, belong on walls and in places that never meet water or acids. All marble is calcium carbonate, so lemon, vinegar or wine leaves a dull etch mark. Choosing the variety is choosing how much that will bother you.
The rest of this article follows from that. First the varieties, then the surface, then what you settle before the stone is ordered.
How Calacatta differs from Carrara beyond the price
Calacatta, Statuario and Carrara come from the same area, the Apuan Alps near Carrara, but the pattern differs. Carrara is greyish white with fine, feathery veins; it is calm and the most affordable. Statuario is cleaner, with bold grey lines. Calacatta is nearly white with thick, high-contrast veins in grey, beige or gold. Little of it is quarried, so the price is high and varies a lot from lot to lot.
The second difference does not show in photos: variation inside one variety. Two Carrara slabs from a lot look alike; two Calacatta slabs can look like different stones. That is why slabs for a wall or an island are viewed in person, not ordered from a 10×10 cm sample.
Nero Marquina and Crema Marfil: what these stones are
Nero Marquina is a Spanish stone, quarried in the Basque Country near Markina-Xemein. It is deep black with white veins, so every scratch and every etch reads. Polished it is beautiful and demanding; honed it is calmer and suits a floor or a bathroom. Crema Marfil comes from the Valencian Community: warm beige, even in tone, with a fine pattern. It forgives marks, which is why it is used for large areas: halls, corridors, living room floors.
Both work in a home with high ceilings: the black and the beige act as a backdrop for wood, brass and plaster. White varieties tend to be the accent on one wall or in one volume.
Which marble should stay out of the kitchen
Onyx, and any stone with many fissures and open pores around the sink and hob. Onyx is brittle and translucent; it belongs on a backlit wall. Every other marble is vulnerable to acids in a kitchen: tomato, lemon, vinegar, wine and descaler dissolve the surface and leave a dull mark.
Etching shows most on dark polished stone: a whitish patch on Nero Marquina catches the eye. On light, honed stone it is hard to see. If you cook a lot and do not want to watch every drop, put granite, quartzite or porcelain on the working zone and keep marble for the serving island, the splashback and the wall.
Polished or matte marble in a bathroom: which is more practical
On floors and in showers, honed or brushed is more practical. Polished marble is slippery when wet, and Barcelona's hard water leaves streaks on it. On walls outside direct splash, polish wins: light goes deeper into the stone and the pattern reads better.
A honed surface hides scratches and acid marks but is more porous, so sealing is not optional. Brushing adds a slight texture: the foot grips better, though dust and stains show more. In practice the two are combined: polished walls and a honed floor in the same stone, so the colour matches.
Marble or marble-look porcelain: where the difference shows
The difference shows at the edge, in the depth of the vein and under raking light. Porcelain pattern is printed on the surface; in the best slabs it runs through the body, but the edge is still uniform, so corners are mitred. The pattern repeats every few pieces, which you notice on a big wall.
In return porcelain does not etch, needs no sealing and is thinner: 6–12 mm against 20–30 mm for a stone slab. It is easier to get into an old building without a lift. On a bathroom floor or in a shower there is hardly any visible difference. Where stone is touched and its edge is seen, such as an island, a vanity or a sill, real marble earns its place.
What to settle before the stone is ordered
Thickness. A 2 cm slab weighs about 54 kg per square metre and a 3 cm one about 81 kg; in an old building the floor structure is checked first. Size. A slab around 3 m long reaches an Eixample flat up the stairs in a crate or by crane over the balcony, and this goes into the delivery plan.
Sequence. First the variety and finish, then the number of slabs, then sanitaryware and taps, because cut-outs and niches land on the pattern. Before installation, a sample in the final finish with its sealer is approved: you test how the stone reacts to lemon and oil. After that there are few surprises once the stone is in.
How BCN YARD can help with stone
We run turnkey renovations together with design and sample approval, in Russian and Spanish: variety, finish, delivery and installation are handled by one person responsible for the site. Budget guide: the Luxury level starts from 3,000 EUR per square metre excluding VAT, with the exact price in the estimate after a visit and measurements. If you are choosing stone for a flat or house in Barcelona, send us the floor plan and reference photos and we will reply within an hour.
Frequently asked questions
Can marble go in a shower?
Yes, if the stone is dense, the finish is honed or brushed and full waterproofing sits underneath. Marble absorbs water in a shower, so it is sealed right after installation and then on a schedule. Wipe hard water off with a squeegee after each shower: limescale shows more on stone than on tile.
How thick should floor marble be?
Floor tiles are usually 10 to 20 mm, with slabs and large formats at 20 mm. Over 30 mm is rarely needed: the stone is heavier, loads the structure and reacts more slowly on underfloor heating. A flat substrate and adhesive across the whole back of each piece, with no voids, matter more.
Can marble go over underfloor heating?
Yes, stone conducts heat well. You need a flexible adhesive rated for heated floors, movement joints and a gradual warm-up before laying. Marble heats and cools slowly, so a steady regime works better than abrupt switching. Before laying, ask the heating manufacturer for the maximum surface temperature and the first warm-up procedure.