Badeloft UB-04-L undermount ramp sink in matte black under a marble counter with a green wall and a round mirror

Undermount Ramp Sink UB-04-L-BLK

Matte black
$460.00
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Badeloft UB-04-L stone resin undermount ramp sink in matte black, angled top view
  • Badeloft UB-04-L stone resin undermount ramp sink in matte black, angled top view
  • Badeloft UB-04-L undermount ramp sink in matte black under a dark counter on a wood vanity with a square tile wall
  • Badeloft UB-04-L undermount ramp sink in matte black set into a wall-hung vanity beside a potted plant
  • Badeloft UB-04-L undermount ramp sink in matte black under a marble counter with a green wall and a round mirror
  • Badeloft UB-04-L stone resin undermount ramp sink in matte black, top view
  • Badeloft UB-04-L stone resin undermount ramp sink in matte black, side view showing the ramp profile
  • Badeloft UB-04-L stone resin undermount ramp sink in matte black, front view
  • Badeloft UB-04-L stone resin undermount ramp sink in matte black, angled view
  • Badeloft render 2026 | UB-04-L | Black | Sink_Matte_Black__Camera_Angle_1.png
  • Badeloft render 2026 | UB-04-L | Black | Sink_Matte_Black__Camera_Angle_2.png
  • Badeloft render 2026 | UB-04-L | Black | Sink_Matte_Black__Camera_Angle_3.png
  • Badeloft render 2026 | UB-04-L | Black | Sink_Matte_Black__Camera_Angle_4.png
  • Badeloft UB-04-L-BLK undermount ramp sink, product view 2
  • Badeloft UB-04-L-BLK matte black undermount ramp sink, lifestyle view
  • Badeloft UB-04-L-BLK matte black undermount ramp sink, lifestyle view 2
  • Badeloft UB-04-L-BLK matte black undermount ramp sink, lifestyle view 3
  • Badeloft UB-04-L-BLK matte black undermount ramp sink, lifestyle view 4
  • Badeloft UB-04-L-BLK matte black undermount ramp sink, lifestyle view 5
  • Badeloft UB-04-L-BLK matte black undermount ramp sink, lifestyle view 6
Undermount Ramp Sink UB-04-L-BLK

Undermount Ramp Sink UB-04-L - Black

$460.00
25.2 x 16.1 x 5.3 in Spec sheet
Colour Black
Finish Matte black
Finish

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Sample & template Feel the finish before you order Choose complimentary material samples and, for bathtubs, a 1:1 paper template. Standard sample shipping is free. Get material sample + 1:1 template
10-year warranty
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14-day returns

What's included

Don't forget your

Sink Faucets Sink Faucets Sold separately · pairs with this sink Shop

Stone resin undermount ramp sink, 25.2 x 16.1 x 5.3 in, matte or glossy black.

The Badeloft undermount ramp sink UB-04-BLK is a medium-large sink in black stone. Measuring nearly 2 feet across and over 5 inches deep, this large sink affords both style and versatility to private and commercial bathrooms. It is large enough for up to two simultaneous users and deep enough for handwashing and soaking. Badeloft is the exclusive provider of undermount ramp sinks in the USA.

Made from natural marble and limestone, this sink is both durable and pleasing to the touch. The jet-black stone adds elegance to your contemporary space, and the undermount design maximizes counter space and minimizes clean-up. This sink comes with an invisible drain slot and hardware for undermount installation, and it is finished in your choice of matte or glossy black.

Key features
Dimensions & fit

Made to measure.

Overall dimensions

25.2 × 16.1 × 5.3 in

Weight
24 Lbs

Review the measurements and technical drawing to plan fit and installation with confidence.

Download the full dimensional drawing (PDF)
Undermount Ramp Sink UB-04-L-BLK
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Shipping & Delivery

Most bathtubs and sinks ship via LTL freight with liftgate and residential delivery included. Smaller items ship via UPS/FedEx. Shipping is calculated at checkout based on your zip code and product weight. Typical delivery is 5 to 10 business days within the contiguous United States. Alaska and Hawaii may incur additional freight charges.

Warranty & Returns

10-year warranty — All Badeloft products are covered by a comprehensive 10-year warranty against manufacturing defects.

14-day returns: Returns may be requested within 14 days of delivery. Items must be like new and in their original packaging, a 10% restocking and handling fee applies, and the customer pays shipping both ways. Contact our customer service team for warranty claims or return requests.

05Why it lasts

Details that matter.

Badeloft details portrait 2026 | UB-04-L | Black | Sink_Glossy_Black__Camera_Angle_1.png

Solid stone resin

The same acrylic-and-mineral composite as our tubs. Non-porous, and resistant to stains and scratches.

Badeloft details portrait 2026 | UB-04-L | Black | Sink_Glossy_Black__Camera_Angle_2.png

Won't chip

A dense, solid surface that shrugs off daily knocks where ceramic would crack.

Badeloft details portrait 2026 | UB-04-L | Black | Sink_Glossy_Black__Camera_Angle_3.png

Quietly absorbent

The thick material dampens sound, softening the rush of water.

Badeloft details portrait 2026 | UB-04-L | Black | Sink_Glossy_Black__Camera_Angle_4.png

Glossy or matte

Two finishes for the same form. Order a free sample to feel the difference.

Real Badeloft homes

Customer photos

See how Badeloft pieces look in real homes and finished spaces.

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Pairs well with

Sink Faucet WAT-01-L
Sink Faucet WAT-01-L $110.00
Sink Faucet WAT-02
Sink Faucet WAT-02 $130.00
Freestanding Sink SB-03-A
Freestanding Sink SB-03-A $850.00
Wall Mounted Sink WT-05-A
Wall Mounted Sink WT-05-A $950.00

Customer reviews