Key Takeaways

• Pick the sink style and faucet before plumbing rough-in.
• Confirm faucet hole layout and drain size in writing. Our standard faucet holes are 35 to 38 mm, and our standard drain hole is 45 mm.
• Wall-mounted sinks need a solid wall and heavy-duty brackets.
• Plan for about 2 to 6 weeks of production, plus roughly 5 to 9 business days of shipping after dispatch.
• Custom pieces can’t be returned once production begins.
• Inspect the crate within 48 hours of delivery, even if the install is weeks away.

Why the Order Matters as Much as the Install

A custom marble sink gets built around your project instead of pulled off a shelf. That’s the appeal. It’s also why small decisions made at the ordering stage can show up later during rough-in, tile, and final plumbing.

At Rowan Marble Design, we make sinks to order from solid natural stone in our workshops in Türkiye, then crate them for delivery to job sites across the United States. Below is what we’d want any remodeler to confirm before signing off on a custom order.

Decide on the Sink Style Before Rough-In

Your sink style decides what happens inside the wall. A wall-mounted or floating basin hangs off brackets, so the drain and supply lines have to be roughed in at heights that match the stone. A console sink sits on legs, which takes some load off the wall but leaves the plumbing on display. And a vanity with a cabinet hides most of it.

Wall-Mounted and Floating Sinks

Our wall-mounted marble sinks are a popular pick for clean, open bathrooms. They also leave the least room for error. There’s no cabinet to hide a drain that’s a few inches off.

Console Sinks and Vanities

Marble console sinks pair a stone basin with metal legs, offered in finishes like brushed brass, polished brass, stainless steel, matte black, gunmetal, and bronze. Exposed plumbing is part of the look, so budget for a decorative trap and supply lines your client won’t mind seeing.

If you’d rather hide everything, our custom marble bathroom sinks and vanities include designs paired with walnut and oak cabinets.

Get the Dimensions Right the First Time

Many of our standard listings come in widths of 20, 24, 30, and 36 inches, and some go up to 40. Depths vary by design. Our Vienna wall-mounted Carrara White sink is 18 inches deep, for example, while some console styles run 16 inches deep. If none of those fit the room, we’ll make it to your dimensions.

Height deserves extra thought. One of our console listings with 30-inch legs comes to a total height of 36 inches, which may feel tall for some users.

Working on a commercial job, or a home where accessibility matters? The 2010 ADA Standards guide on lavatories and sinks sets a 34-inch maximum rim height, at least 27 inches of knee clearance, and protection for exposed pipes under the sink. Those rules apply to covered facilities rather than every private home, but they’re a useful reference.

Faucet and Drain Details That Trip Up Remodelers

This is where a lot of avoidable problems start.

Faucet Holes

Faucet choice and hole layout have to agree. On most of our sink listings, you can choose from four layouts:

• No holes
• 1 hole on the sink
• 3 holes on the sink (8-inch widespread)
• 3 holes on the wall, for a wall-mount faucet setup (8-inch widespread)

Our standard faucet hole diameter is 35 to 38 mm. Need a different layout? Request it in the Custom Add field when ordering. Either way, pick the actual faucet first and check its spec sheet against the hole size and spacing, since a wall-mount faucet also needs its valve set in the wall before drywall.

If water efficiency is part of the brief, look for WaterSense labeled bathroom faucets, which the EPA caps at 1.5 gallons per minute.

Drain and Overflow

Our standard drain hole is 45 mm, which is about 1.77 inches. Confirm the drain assembly your plumber plans to use fits that opening. And ask us whether your design includes an overflow, because many stone basins are made without one and the drain needs to match.

Keep in mind that our sinks ship as the marble sink only, so the faucet, drain assembly, and mounting hardware aren’t included unless specified.

Plan the Wall Before the Stone Arrives

Solid marble is heavy, and a floating sink puts all of that weight on the wall. Our marble sink installation resources call for mounting on a solid surface such as concrete, brick, or reinforced studs, with heavy-duty metal brackets carrying the load. In a framed wall, that generally means adding solid blocking between studs before the wall is closed up. Construction adhesive or stone epoxy can add stability, but it’s a supplement, not a substitute for brackets.

The stone on each side of our wall-mounted sinks is about 1 inch thick, so on a 24-inch sink, brackets spaced about 22 inches apart stay hidden behind the stone.

We offer heavy-duty wall-mount brackets as an add-on. Ask us for the finished weight of your piece too, since it helps with blocking and with getting the crate off the truck. We also recommend having a qualified plumber handle all faucet and drain connections.

Choose the Stone and Finish With Eyes Open

We carve sinks from stones like Carrara White, Calacatta Viola, Calacatta Gold, Nero Marquina, Rosso Levanto, Lilac, and Travertine, sourced from quarry regions in Türkiye such as Afyon, Muğla, and Denizli. Each one behaves a little differently: travertine has natural pitting and texture, while Carrara is fine-grained with soft gray veining. You can compare all of our natural marble options side by side.

Every block is different, too. Veining and color will vary from the photos, and that’s natural, not a defect. Before production, we can share slab photos or videos so you and your client can approve the actual stone. Most custom orders also include technical drawings for approval.

Then there’s etching. Marble’s key mineral is calcite, and the USGS explains that acids react with calcite and dissolve it. In a bathroom, that means acidic cleaners, vinegar, or lemon can dull a polished surface. Our sinks are sealed before they ship. But sealing isn’t a shield against acid, so clients should still use a pH-neutral stone cleaner (our marble care and maintenance guide covers the basics).

Finish plays a part as well. Depending on the product, we offer polished, honed, leathered, and brushed finishes, and generally speaking, a honed surface shows light etching less than a high polish does.

Build Lead Time Into the Remodel Schedule

Production typically takes 2 to 6 weeks, depending on the design and how much customization is involved. After that, shipping usually takes about 5 to 9 business days from dispatch. Our made-to-order marble process starts with a personal review of your request within 24 hours and a proposal within 48 hours.

For most remodels, it makes sense to place the order around the time plumbing rough-in is being planned, not after tile goes up.

Buyers are also responsible for any customs duties or local import taxes, according to our shipping policy. Build that into the budget early so nobody’s surprised.

Know What’s Final Before You Approve

Custom and made-to-order pieces can’t be returned once production begins, and orders can be canceled within 24 hours of purchase. It’s all spelled out in our refund policy. So treat drawing approval as the real point of no return.

Delivery is the other moment that matters. Every shipment travels in a custom wooden crate and is fully insured in transit. If anything arrives damaged, photograph it and contact us within 48 hours, and after review we’ll send a replacement at no additional cost or issue a full refund. But here’s the catch on busy job sites: a crate that sits unopened in a garage for three weeks won’t make that window.

Open it, inspect it, then store it.

Trade Pricing for Remodelers and Designers

If you order stone regularly, our trade program for design and construction pros is worth a look. It’s open to builders, design-build firms, interior designers, architects, and similar professionals. The free Studio Partner tier includes 10% off, and applications are reviewed within two business days. You’ll need a business license or resale certificate to apply.

Ready to Spec Your Custom Marble Sink?

Send us your dimensions, stone preference, faucet plan, and any drawings or reference photos, and we’ll come back with a proposal and timeline. Contact the Rowan Marble Design team to start your custom marble sink order. You can also call us at +1 858 394 5888, Monday through Friday, 9am to 6pm PST.

Frequently Asked Questions

How long does it take to get a custom marble sink?

At Rowan Marble Design, production typically takes 2 to 6 weeks, depending on design and customization. Shipping usually adds about 5 to 9 business days after dispatch.

Can a wall-mounted marble sink be installed on drywall?

Not on drywall alone. It should be mounted to a solid surface such as concrete, brick, or reinforced studs, with heavy-duty metal brackets carrying the weight. In framed walls, blocking is generally added before the drywall goes up.

What faucet works with a custom marble sink?

Most standard deck-mounted or wall-mounted faucets can work, as long as the hole layout matches. Our standard faucet hole diameter is 35 to 38 mm, with single-hole and 8-inch widespread options on the sink or the wall.

Do marble sinks need to be sealed?

Ours are sealed before shipping. Resealing may be recommended over time. For daily cleaning, use a soft cloth and a pH-neutral stone cleaner, and avoid acidic products.

Will my marble sink look exactly like the photos?

It’ll follow the approved design, but natural veining and color vary from block to block. We can share slab photos or videos before production so you can approve the stone.

Can I return a custom marble sink?

Custom and made-to-order products can’t be returned once production begins, though damage reported within 48 hours of delivery is reviewed for a replacement or full refund.