A Compact Quartz Bar and Prep Sink in a Concrete Finish

This Karran undermount sink is a square single-bowl bar and prep sink built from quartz composite and finished in Concrete, a warm gray tone that pairs naturally with stone and solid surface countertops.

Key Features

• Concrete finish quartz composite with a matte, stone-like surface character.
• Square 14-inch interior bowl with an 8-1/4-inch depth for a compact but capable basin.
• Undermount installation for granite, quartz, and solid surface countertops.
• Requires a minimum 21-inch cabinet width to seat correctly.
• 3-1/2-inch drain opening for standard basket strainer compatibility.
• cUPC and IAPMO certified quartz construction.

Where a Square Bowl and Concrete Finish Work Together

A square bowl suits bar, island, and prep stations where a tight footprint matters and a standard double-bowl kitchen sink would overrun the available cabinet. At 16-5/8 inches square on the outside and 14 inches square on the inside, this sink fits a dedicated bar run or a compact prep zone without dominating the countertop plan. The Concrete finish leans toward the neutral, cooler end of the gray palette, making it a natural companion for quartz countertops in gray, white, or stone tones, and for solid surface or granite that reads more mineral than warm.

Quartz Composite Construction

The sink is made from quartz composite, a dense engineered material that gives the bowl the weight and visual texture of stone. The Concrete finish carries through the material rather than sitting on a surface coating, so chips and wear do not expose a contrasting core. The undermount rim is machined to bond beneath a compatible countertop, keeping the counter surface unbroken to the bowl edge. This sink is cUPC and IAPMO certified.

Planning the Install

This sink is designed for undermount installation into granite, quartz, or solid surface countertops and requires a minimum cabinet width of 21 inches. Because it mounts from below, it needs a countertop that can be fabricated with a supporting undermount cutout, making it the right choice for a new countertop or a remodel where the counter is being replaced. The 3-1/2-inch drain opening accepts a standard basket strainer. Confirm the cabinet width and countertop material before finalizing the rough-in.

Common Questions

A Concrete-Finish Quartz Bowl Built for the Tight Spots

When the countertop plan calls for a compact undermount sink that matches a cool stone aesthetic, this Karran quartz bar and prep sink in Concrete delivers the right footprint, the right depth, and a finish that reads as part of the surface.