A 31-3/4 Inch Single-Bowl Undermount Sink for Black-Accented Kitchens

This Karran single-bowl kitchen sink is a quartz undermount designed for kitchens where a bold, dark finish anchors the countertop. It mounts beneath granite, quartz, or solid surface countertops and requires a minimum 36-inch cabinet width.

Key Features

• Black quartz composite construction that integrates cleanly with dark or contrasting countertop materials.
• Single-bowl configuration with a 29-inch interior length and 9-inch depth for generous workspace and soaking clearance.
• Undermount installation into granite, quartz, or solid surface countertops, keeping the counter surface uninterrupted at the bowl edge.
• 3-1/2 inch drain opening sized for standard kitchen strainers and disposal flanges.
• cUPC and IAPMO certified for plumbing code compliance in the United States and Canada.

One Unbroken Basin for Kitchen Work

A single bowl this size handles the full range of kitchen tasks without dividing the workspace. Tall stockpots drop in without fighting a divider, sheet pans rinse flat, and large cutting boards soak upright along the side wall. The 9-inch interior depth keeps splashing contained and leaves room to work without the sink feeling cramped. Because it undermounts, the counter surface runs flush to the bowl rim with no raised lip to interrupt wiping down or sweeping debris straight into the basin.

Quartz Composite in a Matte Black Finish

The sink is built from quartz composite, a dense engineered material that pairs the look and weight of stone with a consistent color throughout the body. The matte black finish reads as a design element in its own right, standing out against light countertops and disappearing intentionally into dark ones. The quartz body resists the surface marking and dulling that a polished finish would show over time, making this a practical choice for a busy kitchen that also needs to look good.

Where This Sink Fits Best

This sink suits a remodel or new build planned around a dark or monochromatic palette, where the black finish is a deliberate design choice rather than an afterthought. It also works well in a high-contrast kitchen, pairing a white or light gray countertop with a black basin for a clean, graphic look. Because it requires a minimum 36-inch cabinet width and undermount installation, it belongs in a new countertop fabrication rather than a drop-in replacement. Designers specifying a complete kitchen package and cabinet shops ordering for a client build will find the cUPC and IAPMO certifications cover standard residential plumbing code requirements across North American projects.

Common Questions

A Black Quartz Bowl Built for the Work

Choose this sink when the kitchen calls for a single deep basin in a finish that makes a statement, backed by certifications that keep the project on code.