Bathroom Vanity Tops in Sintered Stone: Thickness, Sizes, Colours and Care
Reviewed by Team Asetica · Sydney · Perth · Melbourne · October 2026
Colours in this guide
Calacatta White
Classic range
Taj Mahal
Designer range
Tambora
Classic range
Kaledonia
Designer range
Asetica sells sintered stone slabs only to stonemasons, cabinet makers and builders. For a bathroom vanity top, sintered stone is a practical choice: it is non-porous, never needs sealing, resists stains, mould and bacteria, and is backed by a 25-year Asetica warranty. We recommend 12 mm slabs for vanity tops, and because every Asetica slab is 3200 x 1600 mm, one slab can make several vanity tops, or a long double vanity with no join. Your stonemason templates, cuts and installs the top, including the basin cut-out, and gives you the final price.
TL;DR
- Sintered stone suits vanity tops: it is non-porous, never sealed, and resists stains, mould and bacteria.
- We recommend 12 mm for vanity tops. A mitred front edge can make it read as 40 mm or 60 mm. 20 mm is available on request.
- Every slab is 3200 x 1600 mm, so most vanity tops, even double vanities, come from one piece with no join.
- Basins are your stonemason's call: ask which basin styles they can make in sintered stone before the top is templated.
- Choose your colour with up to 3 free samples (NSW, VIC and WA), sent the next business day, or see full slabs at a showroom.
Why use sintered stone for a vanity top?
A vanity top deals with water, soap, toothpaste and makeup every day. Sintered stone handles that well:
- Non-porous: water and spills stay on the surface and wipe away, so stains don't soak in.
- Never sealed: there is no sealing to keep up, now or later.
- Hygienic: mould and bacteria cannot penetrate the surface.
- Matching walls: the same slab can line the wall behind the vanity or the shower, with no grout lines.
- Warranty: backed by a 25-year Asetica warranty.
Sintered stone is not natural stone. Colours such as Calacatta White give a marble look, and Taj Mahal and Mont Blanc a quartzite look, without the sealing that natural marble needs. Read more in what is sintered stone.
How thick should a sintered stone vanity top be?
We recommend 12 mm for vanity tops. Vanities have short spans, and a 12 mm slab is about 40% lighter than 20 mm over the same area, which makes it easier to handle in a tight bathroom and lighter on the cabinet. For a chunkier look, your stonemason mitres a strip of the same slab to the front edge, so a 12 mm top can read as 40 mm or 60 mm thick.
| 12 mm | 20 mm | |
|---|---|---|
| Best for | Vanity tops, splashbacks and bathroom wall panels | Kitchen benchtops and islands |
| Weight | About 40% lighter | Heavier |
| Thicker edge look | Mitred edge, reads as 40 mm or 60 mm | Mitred edge, reads as 40 mm or 60 mm |
| Availability | Standard thickness | On request, minimum quantities apply; some colours come in 12 mm only |
| Guide slab price (Classic) | from $820 | from $1,060 |
For the full comparison, see 12 mm vs 20 mm: which thickness to choose.
See it before you choose
Order up to 3 free samples, sent the next business day (NSW, VIC, WA), or see full slabs at a showroom.
What size vanity tops can you cut from one slab? 900 mm, 1200 mm and double vanities
Every Asetica slab is 3200 x 1600 mm, about 5.12 square metres. Because the slab is 3200 mm long, most vanity tops, including double vanities, can be cut in one piece with no join, and the rest of the slab can become a splashback, shelf or wall panel in the same colour.
| Example top (width x depth) | Area | Rough guide: tops per slab in simple rows |
|---|---|---|
| 600 x 460 mm | 0.28 m2 | about 15 |
| 900 x 460 mm | 0.41 m2 | about 9 |
| 1200 x 460 mm | 0.55 m2 | about 6 |
| 1800 x 460 mm (double vanity) | 0.83 m2 | about 3 |
These counts are a rough guide only, not a promise of yield. They are simple arithmetic on a 3200 x 1600 mm slab, with flat example tops 460 mm deep laid in straight rows along the slab, no mitred front edge, upstand or basin work, and no allowance for saw cuts, edge trimming or vein direction. A different layout can fit more; mitred edges and upstands use more. The real number depends on the slab you order and on your stonemason's cutting layout, so measure your own cabinets and ask your stonemason to plan the cuts.
Builders and cabinet makers: if you are fitting the same vanity in several bathrooms, give your stonemason the full schedule so they can plan the cuts across every slab. Call 1300 161 388 for stock and trade pricing.
Can I have an undermount or integrated basin?
Ask your stonemason. Asetica supplies the slab; the basin (sink) cut-out and any other basin work is fabrication work, and what is possible depends on your stonemason's workshop, the colour and the thickness you choose. Before the top is templated, settle three things with them:
- The basin: the exact model and how it mounts, so the cut-out is in the right place and the right size.
- The tapware: whether taps sit on the top or on the wall, so holes are cut in the right place.
- Splashback or upstand: whether you want the wall behind the vanity in the same colour.
Stonemasons can download the Asetica fabrication guide and cleaning guide from our downloads page.
Which colours suit a bathroom vanity? Marble look, warm, grey and dark
Every colour below is in the current Asetica range, and most come in a matte finish and in 12 mm and 20 mm. Check each colour's page for thickness and stock.
| Look | Colours (range) |
|---|---|
| Bright white, marble look | Calacatta White (Classic), Kalos Bianco (Classic), Crystallo (Classic), Bianco Lasa (Classic) |
| Plain and soft white | Pure Ice (Classic), Loro White (Classic, 12 mm only) |
| Warm cream, quartzite and travertine look | Taj Mahal (Designer), Mont Blanc (Designer), Thar (Classic), Tesa (Classic), Crema Travertine (Designer, 12 mm only), Travertino Pearl (Designer, 3D carved finish) |
| Grey and concrete look | Tambora (Classic), Supergrey (Designer), Sabbiosa Med (Classic), Thundra (Classic) |
| Dark and dramatic | Pure Black (Classic), Fior di Bosco (Designer), St Laurent (Designer) |
| White with bold coloured veining | Kaledonia (Designer, violet grey veining), Tropical Green (Luxury, green veining) |
Not every colour is stocked in every state. Check availability with your stonemason or call 1300 161 388.
See Kaledonia in a finished family bathroom in our Kaledonia kitchen and bathroom makeover. Planning a floating vanity with a deep mitred front? Our full-body colours, Super Taj, Silver Root Brown and Premium Travertino, carry the pattern through the slab, so the veining continues around a mitred edge. They come in 20 mm only.
Homeowner? Asetica supplies slabs through stonemasons, so we can't quote you directly. Choose your colour, then ask your stonemason for a full quote for the vanity top. Need a stonemason? Ask us for a referral
Vanity top cost: slab prices and fabrication
Your stonemason prices the finished vanity top and will confirm how much slab your top needs. As a guide, Asetica's indicative slab prices start from about $820 per 12 mm slab for the Classic range, $1,020 for Designer and $1,480 for Luxury, including GST, for a full 3200 x 1600 mm slab. Installed, porcelain and sintered stone benchtops from Melbourne fabricators typically run about $1,500 to $1,600 per square metre. That is indicative only and depends on the job. Small jobs such as a single vanity, mitred edges and cut-outs push the rate higher. If your kitchen and bathroom share a colour, ask your stonemason to plan the vanity from the same slabs.
These are indicative guide prices, not quotes, and full-body colours are not covered by them. Stonemasons with an Asetica trade account can obtain sharper rates. See the full sintered stone price guide.
How do you clean and care for a sintered stone vanity top?
Wipe it with warm water, a mild detergent and a soft cloth. For tougher marks, a gentle surface cleaner works well. Avoid abrasive pads and strong chemicals; they are unnecessary. The surface is non-porous, so it never needs sealing. The cleaning guide is on our downloads page, and more answers are in our sintered stone FAQ.
How do I choose a colour and order a vanity top?
- Choose your colour. Order up to 3 free samples from the sintered stone collection, sent the next business day (NSW, VIC and WA), or see full slabs at a showroom.
- Take your plans to your stonemason. Bring the vanity size, basin model and tap position. They can open an Asetica trade account for current trade pricing and quote the job in full.
- No stonemason yet? Contact us and we can refer you to stonemasons who work with Asetica slabs.
| Showroom | Address | Visits and hours |
|---|---|---|
| Sydney | 101 Fairford Rd, Padstow NSW 2211 | Bookings only. Mon to Fri 8am to 5pm, Sat 9am to 4pm |
| Melbourne | 14 Wilson Street, South Yarra VIC 3141 | Walk-ins welcome. Tue to Fri 10am to 4pm, Sat by appointment |
| Perth | Home Base Subiaco, 55 Salvado Rd, Subiaco WA 6008 | Walk-ins welcome. Mon to Fri 9am to 5pm, Sat 8:30am to 5pm, Sun 10am to 4pm |
Stonemasons, cabinet makers and builders: call 1300 161 388 or contact us for the current trade price list.
Comparing colours? Order up to 3 free samples, sent the next business day, to see them in your own bathroom light. Samples are available to NSW, VIC and WA addresses. Choose your samples
Frequently asked questions
Is sintered stone good for a bathroom vanity top?
Yes. Sintered stone is non-porous, so water, soap and spills stay on the surface and wipe away, and mould and bacteria cannot penetrate it. It never needs sealing and is backed by a 25-year Asetica warranty.
What thickness should a vanity top be?
Asetica recommends 12 mm for vanity tops. It is about 40% lighter than 20 mm, and a mitred front edge can make it read as 40 mm or 60 mm thick. 20 mm slabs are available on request, minimum quantities apply, and some colours come in 12 mm only.
Can a sintered stone vanity top have an undermount or integrated basin?
Ask your stonemason. The basin cut-out and any other basin work is fabrication work, and what is possible depends on their workshop, the colour and the thickness. Confirm the basin model and tap position with them before they template the top.
How many vanity tops can you get from one slab?
Every Asetica slab is 3200 x 1600 mm. As a rough guide only, tops laid in simple rows give about nine 900 x 460 mm tops, six 1200 x 460 mm tops or three 1800 x 460 mm double vanity tops per slab, before mitred edges, upstands and saw cuts. The real number depends on the slab you order and your stonemason's cutting layout.
How much does a sintered stone vanity top cost?
Your stonemason quotes the finished top. As a guide, Asetica slabs start from about $820 per 12 mm slab (Classic), $1,020 (Designer) and $1,480 (Luxury), including GST. For the installed price, ask us for a quote, and see our sintered stone price guide for typical installed figures.
How do you clean a sintered stone vanity top?
Use warm water, a mild detergent and a soft cloth, and a gentle surface cleaner for tougher marks. Avoid abrasive pads and strong chemicals. The surface is non-porous and never needs sealing.
Is sintered stone the same as marble?
No. Sintered stone is not natural stone. Colours such as Calacatta White give a marble look, but the surface is non-porous and never needs sealing, unlike natural marble.
Where can I see the colours?
Order up to 3 free samples, sent the next business day to NSW, VIC and WA addresses, or see full slabs at our showrooms in Sydney (Padstow, bookings only), Melbourne (South Yarra) and Perth (Home Base Subiaco).
More guides from Asetica:
- 12 mm vs 20 mm Stone Benchtops: Which Thickness to Choose
- How Much Does Sintered Stone Cost in Australia?
- What Is Sintered Stone? Properties, Uses and Comparisons
About Team Asetica
Asetica Surfaces is a trade wholesaler supplying sintered stone slabs to stonemasons, cabinet makers, builders, architects and designers across Sydney, Perth and Melbourne. Asetica does not cut, install or quote direct to homeowners; your chosen stonemason does. Prices in this guide are indicative only. See the range at our Perth (Home Base Subiaco) and Melbourne (South Yarra) showrooms, or book a visit to Sydney (Padstow). Call 1300 161 388.
Asetica Surfaces is a trade wholesaler supplying sintered stone slabs to stonemasons, cabinet makers, builders, architects and designers across Sydney, Perth and Melbourne. Asetica does not cut, install or quote direct to homeowners; your chosen stonemason does. Prices in this guide are indicative only. See the range at our Perth (Home Base Subiaco) and Melbourne (South Yarra) showrooms, or book a visit to Sydney (Padstow). Call 1300 161 388.
Choosing a vanity colour? See sintered stone in person.
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