Double Marble Sink & Trough Basins — One Solid Block

A double marble sink carved from one block — no seam down the middle, no joints to fail — is the centerpiece of a serious master bathroom. Marbly Design carves double basins and long trough sinks to your exact vanity width and ships them worldwide, insured and duties paid.

The demand is well documented: 69% of homeowners upgrading a master bathroom chose a two-sink setup (U.S. Houzz Bathroom Trends Study, 2019), and NAHB's What Home Buyers Really Want survey ranks a double vanity among the top four most-wanted primary bathroom features (NAHB, 2021). Two basins work beautifully when both are hollowed from the same stone, veining flowing uninterrupted across the full length — our troughs run up to 200 cm from single blocks.

Specify total width, basin split and faucet drilling; we confirm everything on a technical drawing before carving. Weight guidance and bracket options are included for floating installations.

Beige Travertine Double Basin Vessel Sink, FlutedFrom $3,695

Beige Travertine Fluted Vessel Sink, Long Trough Single Basin HandcarvedFrom $3,795

Carrara White Marble Fluted Vessel Sink, Double Basin HandcarvedFrom $3,695

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Frequently Asked Questions

How wide is a double marble sink?

Most of our doubles run 100–160 cm (40–63 in); as custom work we can carve to your exact vanity width, up to ~200 cm from a single block.

Is a one-piece trough better than two separate sinks?

One carved block means no seams to collect grime or fail, uninterrupted veining, and a cleaner installation with fewer drains if you prefer a shared slope.

How heavy are double sinks, and can walls support them?

Doubles typically weigh 40–90 kg; our steel bracket system with stud or masonry fixing is engineered for it, and we provide guidance for your installer.

Does a double vanity add resale value?

Buyer surveys say yes for shared primary baths: NAHB found a double vanity among the top four features buyers want in a primary bathroom (NAHB, 2021). The honest caveat: in a small bathroom, one generous basin with counter space is often the smarter layout than two cramped ones.