Concrete Tone and Workstation Fit in a Double-Bowl Undermount Sink

The Karran QUWS-880-CN is a quartz composite undermount kitchen sink with two equal bowls and a concrete finish, designed to mount beneath granite, quartz, or solid surface countertops in a 36-inch or wider base cabinet.

Key Features

• Concrete finish quartz composite that reads like cast concrete without the weight or maintenance of the real material.
• Equal 50/50 double-bowl configuration with two basins at 14-1/4 inches long, 15-3/4 inches wide, and 9 inches deep each.
• Undermount installation into granite, quartz, or solid surface countertops, with a 36-inch minimum cabinet width required.
• 3-1/2 inch drain openings sized for standard kitchen strainers and basket hardware.
• cUPC certified for plumbing code compliance in the US and Canada.
• Workstation-compatible design built to integrate with ledge accessories for expanded prep and cleanup workflow.

Two Bowls for a Divided Workflow

Equal-split double bowls let the sink pull double duty: keep one side active for rinsing while the other holds a colander, a soaking pot, or the morning's prep work. Because both bowls run to the same 9-inch depth, neither side forces a compromise on capacity. The workstation design adds an integrated ledge, so compatible accessories like a cutting board, colander, or drying rack can bridge the sink and shift the prep area right over the basin rather than consuming counter space beside it.

Quartz Composite in a Concrete Finish

The concrete finish gives this sink the muted, warm-gray palette that pairs naturally with industrial and transitional kitchen aesthetics without requiring the upkeep that genuine cast concrete demands. The sink body is quartz composite, a dense engineered material that holds its color and surface consistency through years of kitchen use. The finish runs throughout the material rather than sitting as a surface coating, so chips and scratches read as the same tone rather than revealing a contrasting base.

Where It Fits Best

This sink suits kitchens built around an industrial-modern or transitional design direction, where concrete, matte black, brushed metal, or wood tones are doing most of the visual work. It drops into a new countertop fabricated in granite, quartz, or solid surface, so it is the right choice for a remodel or new build where the countertop is being cut fresh. The 36-inch minimum cabinet width is the critical fit dimension: measure the base cabinet before specifying. For a household or commercial prep kitchen that wants a two-basin sink with workstation functionality and a finish that sits outside the typical white-or-gray spectrum, this configuration covers the brief.

Common Questions

A Concrete-Finish Sink That Works as Hard as It Looks

For kitchens where the design language runs toward the industrial or transitional end and the workflow calls for two full-depth bowls with room for accessories, this Karran workstation sink delivers the finish and the function in a single undermount unit.