A buyer's guide to custom precast concrete vanity tops covering sizes and thicknesses, integrated and undermount sink options, floating installs, what they cost, and how long fabrication takes.
Custom Concrete Vanity Tops: Sizes, Sink Options, Pricing, and Lead Times
If you are pricing a custom concrete vanity top for a bathroom remodel, a new build, or a hotel restroom, you probably have the same four questions everyone asks us. What sizes can you make? Can the sink be part of the top? What does it cost? How long does it take? This guide answers all four.
What a Custom Concrete Vanity Top Is
A custom concrete vanity top is a precast piece we pour in our Texas shop to your exact dimensions. We seal it, then ship it or install it. Nothing is poured in your bathroom.
Precasting means the top arrives finished and sealed. The edges, the sink, and the drain are all built into the mold before the pour. That is what lets concrete do things stock quartz and natural stone cannot do. A sink can be cast directly into the top. A vanity can float off the wall with no cabinet under it.
Sizes and Thicknesses
Every top is templated to your cabinet or wall dimensions. There is no fixed size list. Single vanities commonly run 24 to 48 inches wide. Double vanities run 60 to 72 inches and up. Longer tops for hotel and restaurant restrooms are made in one piece or in sections depending on the length and the path into the room.
Thickness is customizable. Standard options run from 1 inch up to 7 inches. A drop edge is a popular middle ground. The top stays thin and light while the front edge drops 3 or 4 inches for a thick slab look. 7" is typically the maximum drop edge a vanity can have while still maintaining compliance with ADA requirements.
Sink Options
This is the decision to make early because it shapes the mold.
Integrated sink. The sink is cast as part of the top with no seam. Options include a ramp sink, a dual ramp, a bowl, and a basin. A concrete vanity top with an integrated sink is the easiest to clean because there is no lip and no caulk line.
Undermount ready. The top is cast with a cutout for the undermount sink you choose. This works well when you want a porcelain or stainless bowl under a concrete surface. We will want the sink in our possession throughout the manufacturing process to ensure proper overhangs are met and mounting hardware lines up.
Vessel sink top. A flat or slightly raised platform sized for a vessel bowl that sits on top.
Drain placement is custom too. Center, slot, and offset drains are all available. We can match the drain position to existing plumbing.
Floating and Wall-Mount Vanities
A floating concrete vanity is one of the most requested modern concrete vanity styles. The top mounts to the wall with no cabinet below it. That opens up the floor and keeps a small bathroom looking clean. Wall-mount installs are engineered with proper support. Cabinet-top installs may need cabinet reinforcement depending on the size.
Weight is the number to plan around. Concrete vanities weigh roughly 15 to 25 pounds per square foot. A 48-inch top lands around 100 to 150 pounds. We typically recommend 2"x2" square tubing mounted to blocking in the wall for us to set on.
Finish, Color, and Sealing
Tops are available in any finish, from a honed matte to a smooth polish to exposed aggregate. Color is pigmented through the mix. It does not sit on the surface and wear off. Send us a color or finish you want to match and we will work from it.
Every vanity is sealed with a stain-resistant coating that makes the surface waterproof for daily bathroom use. In a high-moisture bathroom, resealing once a year keeps it that way. For more on how sealers differ, see our guide to food safe vs non food safe concrete sealers.
ADA Compliance
Vanities for commercial and public restrooms can be built to ADA counter height with the knee clearance and faucet placement the standard requires.
How Much a Custom Concrete Vanity Costs
Typical range: $150 to $300 per square foot, plus $1,000 to $3,000 for any integrated sink.
Some factors that affect this are:
- Width and thickness
- Sink type (an integrated sink takes more mold work than an undermount cutout)
- Edge profile and drop edge
- Finish and custom color
- Wall-mount hardware and engineering
Shipping or installation is built into the quote. There is no second bill.
Lead Times
Fabrication typically takes 3 to 6 weeks from approved drawings to a finished piece. Simple undermount-ready tops land on the short end. Integrated sinks and custom shapes land on the long end. We confirm the timeline when we quote.
Ordering and Delivery
Send us the cabinet or wall dimensions, the sink style you want, and the drain location. Drawings from an architect or designer work great. We turn those into a shop drawing you approve before we pour.
We can install with our own team in Central Texas or crate the top and ship it anywhere in the country. Both options are priced in the quote. Every piece carries a one-year product warranty.
If you are outside Texas, our guide on what to expect when ordering custom architectural concrete from out of state covers shipping in more detail.
Ready to Price Your Vanity?
Send us your dimensions and sink preference and we will put together a quote. You can see finished pieces on our vanities page.
Still deciding between materials? See why architects and homeowners choose concrete over quartz and stone.
