A Compact Undermount Kitchen Sink in a Concrete Finish

The Karran Q-320 is a single-bowl quartz kitchen sink that mounts beneath the countertop and pairs a compact 24-1/4 inch footprint with a Concrete finish that reads as cool, textured grey in a modern or industrial kitchen.

Key Features

• Concrete quartz composite finish with the muted, textured tone of natural concrete.
• Single undermount bowl with an 8-1/2 inch depth for full pot and pan clearance.
• 80% quartz composite construction that resists staining and handles kitchen heat.
• Fits a 27-inch minimum cabinet, making it practical for compact base cabinets and tighter kitchen layouts.
• Designed for laminate, solid surface, and granite countertops with a standard 3-1/2 inch drain opening.
• cUPC and IAPMO certified for compliance with North American plumbing standards.

Where the Concrete Finish Works

Concrete as a finish earns its place in kitchens where matte surfaces and cool, neutral tones anchor the design. It works alongside dark wood cabinetry, exposed hardware, and open shelving, and it holds its own against bold countertop materials without competing with them. Because this sink undermounts, the countertop edge finishes cleanly to the bowl rim with no visible lip, which keeps the surface uninterrupted and wipe-down simple. At 24-1/4 inches wide, this is also the right choice when the layout cannot accommodate a larger bowl but still needs a full kitchen sink rather than a prep or bar sink.

Quartz Composite Construction

The Q-320 is built from an 80% quartz composite body, which gives the sink its density and a matte surface that does not show every water spot or light scratch the way polished bowls do. The Concrete finish is uniform through the composite, so chips and minor surface wear do not expose a contrasting underlayer. The bowl measures 21-5/8 inches long by 15-3/4 inches wide inside, with an 8-1/2 inch depth that handles tall stockpots without difficulty. The 3-1/2 inch drain opening accepts standard basket strainers.

Planning the Installation

This sink is designed to undermount into laminate, solid surface, or granite countertops, and it requires a minimum 27-inch base cabinet. Undermount installation is the only option here: the sink cannot be top-mounted. It is also intended for new countertop installations rather than a drop-in replacement into an existing cutout, so it fits best into a remodel or new build where the countertop is being fabricated or replaced. The cUPC and IAPMO certifications confirm it meets North American plumbing code requirements. Measure the cabinet opening and confirm the countertop material before ordering.

Common Questions

A Single Bowl That Fits Where Others Don't

The Q-320 in Concrete brings a clean, modern sink option to kitchens where space is limited and the design calls for a matte, neutral finish that holds up to daily use without requiring extra maintenance.