Badeloft UB-05-XL undermount sink in matte white under the counter of a fluted floating vanity with a round mirror

Undermount Sink UB-05-XL

Matte white
$490.00
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Badeloft UB-05-XL stone resin undermount sink in matte white, angled top view
  • Badeloft UB-05-XL stone resin undermount sink in matte white, angled top view
  • Badeloft UB-05-XL undermount sink in matte white in a dark floating vanity with a bold patterned tile wall
  • Badeloft UB-05-XL undermount sink in matte white under the counter of a fluted floating vanity with a round mirror
  • Badeloft UB-05-XL undermount sink in matte white under a marble counter with a bold patterned tile wall, close view
  • Badeloft UB-05-XL undermount sink in matte white under a marble-look counter beside an arched doorway
  • Badeloft UB-05-XL undermount sink in matte white under a marble-look counter with a potted plant and arched mirror
  • Badeloft UB-05-XL undermount sink in matte white under a marble-look counter, seen from above
  • Badeloft UB-05-XL undermount sink in matte white under a stone counter on a fluted vanity, close view
  • Badeloft UB-05-XL undermount sink in matte white under a stone counter on a fluted vanity by a freestanding tub
  • Badeloft UB-05-XL undermount sink in matte white under the counter of a fluted vanity with a wall niche, wide view
  • Badeloft UB-05-XL stone resin undermount sink in matte white, angled view
  • Badeloft UB-05-XL stone resin undermount sink in matte white, top view
  • Badeloft UB-05-XL stone resin undermount sink in matte white, side view
  • Badeloft UB-05-XL stone resin undermount sink in matte white, front view
  • Badeloft render 2026 | UB-05-XL | White | Sink_Matte_White__Camera_Angle_1.png
  • Badeloft render 2026 | UB-05-XL | White | Sink_Matte_White__Camera_Angle_2.png
  • Badeloft render 2026 | UB-05-XL | White | Sink_Matte_White__Camera_Angle_3.png
  • Badeloft render 2026 | UB-05-XL | White | Sink_Matte_White__Camera_Angle_4.png
Undermount Sink UB-05-XL

Undermount Sink UB-05-XL

$490.00
39.4 x 16.7 x 7.1 in Spec sheet
Colour White
Finish Matte white
Finish
Drain cap finish Chrome

Chrome included · other finishes +$29.00

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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
Affirm financing
14-day returns

What's included

Don't forget your

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

Stone resin undermount sink, 39.4 x 16.7 x 7.1 in, matte or glossy white.

The Badeloft Undermount Sink UB-05-XL is our most spacious undermount sink in white stone. Measuring over 3 feet long and 7 inches deep, this extra-large model easily accommodates multiple simultaneous users, making it an ideal choice for luxury master bathrooms and commercial restrooms. The sink also features a flat basin, which maximizes practical space for handwashing and soaking while providing the sink’s interior with a clean symmetry.

Badeloft’s undermount sink design is one of the most sought-after in luxury bathrooms. The 32 lb stone vessel is light for its size and easily affixes to the underside of your counter. Undermount sinks leave your countertop free of seams and lips, giving it a flush, seamless look. A favorite style in minimalist bathrooms, undermount sinks also make for easy cleaning, as there are no seams or crevices where grime can accumulate.

The rectangle sink is made of stone resin, Badeloft’s proprietary blend of natural marble and limestone. Stone resin is extremely durable and non-porous, combining the cool feel of stone and the attractive sheen of acrylic. Guaranteed to last for years in your luxury bathroom, stone resin is easy to maintain and resistant to all types of damage. 

Badeloft’s classic white stone is our most versatile sink color. It fits perfectly in both traditional and contemporary baths, and its beautiful sheen will not dull or chip like porcelain and clay. Choose a hand-buffed finish in matte or glossy white to complete your sink. Your purchase also includes a pop-up drain in one of five colors and an overflow channel. 

Key features
Dimensions & fit

Made to measure.

Overall dimensions

39.4 × 16.7 × 7.1 in

Weight
32 Lbs

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

Download the full dimensional drawing (PDF)
Undermount Sink UB-05-XL
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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-05-XL | White | Sink_Glossy_White__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-05-XL | White | Sink_Glossy_White__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-05-XL | White | Sink_Glossy_White__Camera_Angle_3.png

Quietly absorbent

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

Badeloft details portrait 2026 | UB-05-XL | White | Sink_Glossy_White__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

Customer reviews