18.5" x 14" Undermount Porcelain Sink - White Ceramic Bathroom Sink

Upgrade your bathroom with a sleek, space-saving undermount porcelain sink designed for modern vanities and timeless interiors. This white ceramic bathroom sink features a clean rectangular shape, durable porcelain construction, and a smooth undermount installation that creates a seamless countertop look.

Product Highlights

• Overall Size: 18 1/2" W x 14" D
• Inner Bowl Size: 16 1/4" W x 12 1/4" D
• Bowl Depth: 4 1/2"
• Overall Height: 7 1/2"
• Drain Opening: 1 3/4"
• Installation Type: Undermount
• Material: Porcelain / Ceramic
• Color: White
• Shape: Rectangular
• Easy-to-clean glazed ceramic surface
• Ideal for bathroom vanities, powder rooms, and guest baths
• Designed for a clean, built-in countertop appearance

Clean Design, Durable Performance

This 18.5" x 14" undermount porcelain sink is a smart choice for homeowners, builders, and designers who want a polished bathroom upgrade. The crisp white finish pairs beautifully with quartz, marble, granite, and solid-surface countertops, while the undermount installation keeps the countertop line smooth and uncluttered.

Made from durable ceramic porcelain, this bathroom sink is built for daily use and easy maintenance. Its compact footprint makes it ideal for smaller vanities without sacrificing usability, and the rectangular bowl provides a practical wash area for everyday routines.

Why Customers Love This Sink

• Creates a premium, seamless vanity look
• Works well in both modern and traditional bathrooms
• Compact size fits many bathroom vanity installations
• Non-porous glazed surface helps simplify cleaning
• Classic white finish complements a wide range of fixtures and countertops

Specifications

• Product Type: Bathroom Sink
• Mounting Type: Undermount
• Material: Porcelain Ceramic
• Finish: Gloss White
• Overall Width: 18 1/2"
• Overall Depth: 14"
• Inner Width: 16 1/4"
• Inner Depth: 12 1/4"
• Inner Bowl Depth: 4 1/2"
• Overall Height: 7 1/2"
• Drain Hole Size: 1 3/4"

This white undermount bathroom sink is a rectangular porcelain vanity sink with 18.5 inch x 14 inch overall dimensions, a 16.25 inch x 12.25 inch inner bowl, 4.5 inch bowl depth, and a 1.75 inch drain opening. It is designed for homeowners searching for a ceramic undermount sink for bathroom vanity, compact white porcelain sink, bathroom sink for stone countertop, or rectangular undermount ceramic sink.

Best use cases include bathroom remodels, guest bathrooms, powder rooms, new vanity installations, and residential design projects that need a durable, easy-to-clean, space-conscious undermount sink with a timeless white finish.

Frequently Asked Questions

Is this sink designed for undermount installation only?

Yes. This sink is made for undermount installation beneath the countertop.

What material is this sink made from?

This bathroom sink is made from porcelain ceramic with a smooth glazed white finish.

What are the sink dimensions?

The overall dimensions are 18 1/2" wide by 14" deep. The inner bowl dimensions are 16 1/4" by 12 1/4".

How deep is the bowl?

The inner bowl depth is 4 1/2". The overall height is 7 1/2".

What size drain opening does it use?

The sink has a 1 3/4" drain opening.

Is the faucet or drain included?

No. This listing is for the sink only unless otherwise stated.

Will this fit my bathroom vanity?

It fits many standard bathroom vanity applications, but you should always confirm cabinet space, countertop cutout requirements, and plumbing compatibility before ordering.