Is marble suitable for a bathroom?
Yes. Marble in the bathroom works well as a vanity top, as long as acidic cleaners and cosmetic spills are kept off the surface and the stone is sealed against stains. According to the Swedish stone industry association, acids only leave cosmetic marks on marble and do not weaken the stone, and if you accept the risk of marks, marble is a good material for kitchen and bathroom tops too.
A vanity top rarely sees knives or hot pans, so the main risks in a bathroom are acidic cleaners, limescale and staining substances. We cover each below. Marble floor and wall tiles for wet rooms have their own page: marble tiles. If you are weighing real marble against a marble-look or quartz top, the differences between the materials are set out in the guide marble vs quartz.
What kind of marble vanity top: size, thickness and edges?
The vanity top is made to the measurements you give us, so it can also fit between two walls, into an awkward corner or a small WC.
- Thickness. Common stone top thicknesses are 20, 30 and 40 mm, and the Swedish stone industry association recommends 20 or 30 mm for bathroom tops, at least 20 mm.
- Overhang. Tell us how far the top should overhang the vanity unit at the front and sides.
- Edges. The edge profile and which edges are finished as visible edges are agreed in the quote and written into the order confirmation.
- Splashback. A marble upstand can be made for the back edge of the top; tell us the height you want.
Marble has a density of about 2.6-2.8 g/cm³, so a top without cut-outs weighs roughly:
| Top size | 20 mm | 30 mm |
|---|---|---|
| 1 m² | About 53-55 kg | About 79-83 kg |
| 80 × 50 cm | About 21-22 kg | About 32-33 kg |
| 120 × 50 cm | About 32-33 kg | About 48-50 kg |
The weight matters most if the vanity unit is wall-hung, so tell us the cabinet model in your quote request.
A vanity top for a separate WC
A vanity top for a separate WC is often small, and the room is usually drier than a bathroom. The Ministry of the Environment wet room decree (782/2017, still in force under the new Building Act) does not require waterproofing behind the wall finish of a separate WC, unlike bathroom walls exposed to water. Keep toilet cleaners away from marble in a WC: acidic products etch it, and some toilet cleaners can contain hydrofluoric acid, which attacks all stone.
Which basin goes with a marble top?
Choose the basin before you measure, because its model decides the shape, size and position of the cut-out. The usual options:
| Basin | How it is fitted | Note |
|---|---|---|
| Undermount basin | Fixed under the top, with the edge of the cut-out visible | Suits ceramic basins and small steel basins; the visible edge is finished |
| Inset basin | The basin rim rests on top of the stone | The cut-out edge is hidden under the rim |
| Vessel basin | Stands on top of the vanity top | Needs only a waste hole and, if required, a tap hole |
| Flush-mounted basin | A rebate is milled so the basin sits level with the stone | Only for basins made for it |
| Carved stone basin | Basin and top both marble | Ask us whether it is possible in your chosen stone and size |
Give us the basin and tap models or their fitting instructions before you accept the order confirmation, because the shape, size and exact position of the cut-outs follow them. Also check that the waste and trap fit inside the cabinet together with any drawers. If you are dreaming of an all-marble basin, remember that its inside is constantly wet and in contact with soap and limescale, so it needs more care than the top.
Taps and other holes
The tap can sit on the top or on the wall. A deck-mounted tap needs a hole whose size and position come from the tap’s fitting instructions, while a wall-mounted tap needs no hole in the top. The position of the waste hole also follows the basin, so all the holes are agreed at the same time.
How to measure a vanity top
The Swedish stone industry association’s guidance says a stone top drawing must be unambiguous, with measurements in millimetres. For a vanity top we need at least:
- The width from wall to wall at both the back and the front, because walls are rarely exactly parallel
- The depth from the wall to the front edge, plus the overhang at the front and sides
- The basin and tap positions: the distance of their centre from one end of the top and from the front edge
- The thickness and which edges are finished
- The height of the splashback
- A cardboard template if the corners are not square.
More detail and the most common mistakes are in the measuring guide.
Wet room rules around a vanity top
The wall behind a bathroom basin gets splashed, and section 28 of the wet room decree requires waterproofing behind surfaces exposed to repeated splashing. A marble vanity top or splashback is not waterproofing; they go in front of a finished, waterproofed wall. The decree also requires the waterproofing to be tight at penetrations, such as where water and waste pipes pass through.
What damages marble in a bathroom?
Acids etch marble, and oily and staining substances mark it. Marble is mainly calcium carbonate, which reacts with acids; the reason is explained in the guide to marble properties. These are the usual culprits in a bathroom:
| Substance | What happens | What to do |
|---|---|---|
| Acidic limescale, toilet and shower cleaners, vinegar, lemon | The surface etches to a dull mark | Use only non-acidic products made for natural stone |
| Rust removers and some toilet cleaners | Can contain hydrofluoric acid, which attacks all stone | Keep them away from the top |
| Make-up, creams and oils | An oil-based stain darkens the stone | Wipe at once; a set-in stain needs a solvent or a poultice |
| Hair dye and other strong colourants | Can stain unsealed stone | Seal the top and wipe spills at once |
| Hard water and soap | Water leaves limescale as it dries, and soap leaves a film | Dry the top after use |
How do you clean and seal a marble vanity top?
Clean the top with warm water and a neutral stone soap or mild washing-up liquid, rinse and dry with a soft cloth. Too strong a solution leaves a film and streaks.
- Limescale and soap. Drying after use and good ventilation reduce limescale. Use a non-acidic remover for soap scum. If you need a limescale remover, choose a non-acidic product made for natural stone and try it on an inconspicuous spot first.
- Sealing. Stone sealers are impregnators that make the surface more stain resistant but not stain proof, and they do not stop acids etching.
- When to reseal. There is no single right interval: stone experts’ estimates of how long a sealer lasts range from six months to more than ten years, depending on the stone, finish and product. Do a water drop test: if the water beads, the sealer works, and if it soaks in, it is time to reseal.
Stain removal, poultices and honing are covered in our guide to marble cleaning and care.
Which marble styles suit a bathroom?
The look of a vanity top comes from colour, veining and finish. Tell us what you would like, and we will suggest stones that suit a bathroom.
- Finish. The Finnish stone industry association notes that a polished finish brings out colour and pattern, while rough finishes soften them and lighten the shade. Etch marks show more on polished than on honed marble, so a honed finish is more forgiving if the top sees plenty of cosmetics and cleaners.
- Colours. All our marble comes from Iran. Iranian marbles include, for example, cream, beige with reddish and yellowish veins, silver grey with fine white veins, dark grey with white veins, and black, either white-veined or nearly uniform. Read more on the Iranian marble page and in the guide to marble types and colours.
- Stone properties. One European stone supplier says the dark grey, white-veined Iranian marble is not particularly resistant to frost or acids and is best suited to dry interiors, so ask about the properties of any stone you choose for a bathroom before you order.
- Carrara. Carrara marble is quarried in Tuscany in Italy, not in Iran. We do not sell Carrara or call any Iranian stone Carrara. If you want a light top, ask about cream marbles.
How much does a marble vanity top cost?
The price is made up of the size of the top, the stone and the work. It depends on:
- The dimensions and thickness of the top
- The stone you choose
- The edge profile and finishing
- The cut-outs: basin, tap and waste
- The splashback
- Installation.
Request a quote to get a price.
You may be able to claim the household tax credit (kotitalousvähennys) on the installation labour if the conditions are met. In 2026 the credit is 40% of the labour cost including VAT, up to €2,100 per person per year, with a €150 deductible. There is no credit for the marble, other materials or travel costs, and the credit requires the labour share to be itemised on the invoice. Check your own situation at vero.fi.
How does ordering work?
You measure, we make the top and install it; making takes about 6 weeks from the confirmed order.
- Choose the basin and tap. Their models decide the cut-outs.
- Measure and request a quote. You give us the measurements, using the list above and the measuring guide.
- Order confirmation. Before making starts, you get an order confirmation listing the measurements, stone, thickness, edges and cut-outs. You check it and accept it in writing. Payment terms are set out in the quote and the order confirmation.
- Making, about 6 weeks. We keep no stock: every top is made to order from Iranian marble to your measurements.
- Installation. When the top is ready, we agree a day and come to install it.
The finished top will not look exactly like a photo or another top, because the shade and veining of the stone vary. The Finnish stone industry association advises agreeing the shade of the stone and its acceptable variation in advance, so tell us in your quote request how even you want the look to be. Each step from order to installation is on the how to order page.
Can a made-to-measure top be returned?
We make the vanity top to the measurements and choices you give us, so it is made to your specifications and has no 14-day right of withdrawal under the Finnish Consumer Protection Act (kuluttajansuojalaki, chapter 6, section 16(1)(3)). Before making starts, you check and accept in writing an order confirmation listing the measurements, stone, thickness, edges and cut-outs. You can still cancel the order before delivery: you then pay only the costs already incurred that cannot be put to other use, plus reasonable compensation, and the earlier you cancel, the smaller they are. Your statutory rights for faults apply: if the top is faulty, you can always report it within at least two months of noticing the fault, and you choose whether the fault is put right or you get a fault-free top instead. Because installation is part of the deal, faulty installation also counts as a fault in the product. If anything worries you, tell us: we do everything we can to make sure you are happy. Read more in our order terms.