Gray Quartz Seamless Undermount Sink for Laminate and Solid Surface Kitchens
The Karran Q-320 in Gray is a single-bowl quartz composite undermount kitchen sink built for seamless installation in laminate and solid surface countertops. Its compact 24-1/4 by 18-1/4 inch footprint works where a standard 33-inch double bowl would not fit, and its 8-1/2 inch depth handles full-size pots without strain.
Key Features
• Seamless undermount installation bonds the sink flush with laminate and solid surface countertops, leaving no visible rim or seam at the counter edge.
• 80% quartz / 20% acrylic resin construction delivers high resistance to scratches, stains, chips, and heat under daily kitchen use.
• Gray finish pairs with a wide range of countertop colors and cabinet styles without committing to a stark white or black statement.
• Single bowl configuration at 24-1/4 by 18-1/4 by 8-1/2 inches maximizes uninterrupted basin space in a compact, bar-sink-friendly footprint.
• IAPMO listed and meets the Uniform Plumbing Code, International Plumbing Code, and National Plumbing Code of Canada.
Where the Q-320 Gray Earns Its Place
This sink is a natural fit for secondary kitchen stations, island prep areas, and smaller kitchen renovations where a double bowl is simply too wide for the run. At just over 24 inches, it drops into a cabinet where most double-bowl sinks cannot, yet the 8-1/2 inch depth still clears a stockpot. The seamless installation method is the critical advantage here: in a laminate kitchen, a conventional undermount sink leaves an exposed cutout edge that collects moisture and eventually fails. The Q Series bonds flush with the countertop surface instead, producing a wipe-clean transition that lasts as long as the counter does. Solid surface countertops get the same benefit, with the seam adhesive and bevel-bit method producing a joint that reads as one continuous surface.
Material and Finish
Quartz composite at this ratio — 80% natural quartz crystals bound in 20% acrylic resin — sits well above an acrylic-only or porcelain-enamel bowl for everyday durability. The material is highly scratch resistant, which matters on a prep sink that sees knives and cast iron regularly, and its heat resistance means a hot pan set briefly on the rim will not mark the surface. The Gray colorway runs through the full depth of the material, so minor surface marks blend rather than expose a white underlayer. Note that the template and mounting clips are not included with the Q-320 and should be sourced separately before the countertop fabrication day.
Who This Sink Is For
Homeowners finishing a laminate kitchen renovation get the undermount look — usually reserved for stone — without replacing the countertop material. Designers specifying a secondary prep station or wet bar in a solid surface application get a confirmed seamless fit with no guesswork about countertop compatibility. Cabinet shops and fabricators working in laminate regularly encounter the problem of a client who wants an undermount aesthetic but has not budgeted for quartz or granite; the Q-320 solves that directly. The compact footprint also makes it one of the few undermount options sized for a 24-inch sink base.
Does the Q-320 work with granite or quartz stone countertops?
The seamless installation method is documented for laminate and solid surface countertops. For granite, quartz stone, or other hard-surface countertops, the QU series undermount is the more appropriate choice, using standard undermount clips and silicone rather than the seamless bevel-bit method.
What is the minimum cabinet size for the Q-320?
The Q-320's overall width of 24-1/4 inches positions it for installation in compact sink base cabinets. Confirm the actual cabinet opening against the sink's full dimensions and cutout requirements before fabricating the countertop.
Are a template and mounting clips included?
No. The Q Series spec sheets state that neither a paper template nor mounting clips are included. Both should be ordered or sourced separately ahead of the installation.
Is a drain included with the sink?
A drain assembly is not included with the Q-320 and must be purchased separately. The bowl uses a standard 3-1/2 inch kitchen drain opening.
How does the Gray finish hold up over time?
The Gray color runs through the full depth of the quartz composite material rather than sitting as a surface coating, so normal daily wear does not expose a contrasting underlayer. The material is rated highly resistant to stains, scratches, and chips under typical kitchen conditions.
A Single Bowl Built for the Long Run
The Q-320 in Gray delivers a seamless undermount installation, durable quartz composite construction, and a neutral finish in a footprint sized for kitchens where every inch of counter run matters.
