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    Sinks
    1. Home
    2. Kitchen & Bath Cabinet Accessories
    3. Sinks and Accessories
    4. Sinks
    Item # KAQU812-CN • Mfr # QU-812-CN

    Karran 32-1/2"W x 19-1/4"D Quartz Concrete Single Bowl Undermount Sink - QU-812-CN

    • Technical data, QU-812-CN
      Technical data, QU-812-CN
    • User manual 1, QU-812-CN
      User manual 1, QU-812-CN

    Description

    Karran Quartz Undermount Sink For Busy Kitchens

    Karran quartz undermount sink defines a practical work area for installers building quartz, granite, or solid surface countertops, because it is designed specifically for undermount installation into those materials and supports clean, modern kitchen layouts. The 32-1/2 inch width and 19-1/4 inch depth establish a generous single bowl that handles large pots and pans, which streamlines cleanup on high-use kitchen projects. Being a single bowl design concentrates space into one working area, so users can soak, wash, and rinse without divider interference. The sink is part of Karran's quartz sinks class, so it aligns with clients requesting a consistent quartz look from countertop to basin. The concrete color presents a neutral tone grounded in the quartz material, which suits a wide range of cabinet finishes and countertop shades in both remodel and new-construction work.

    Quartz Sink Details That Support Daily Use

    • The sink is made from 80% natural quartz crystals and pure acrylic resin, which provides a dense, solid surface that stands up to everyday kitchen tasks without feeling flimsy in the countertop cutout.
    • Heat resistance up to 535 F along with the ability to withstand rapid hot and cold water temperature changes lets the bowl handle hot pots and alternating water flows without thermal stress becoming a routine concern.
    • The durable quartz material is non-porous, which prevents the spread of germs and bacteria and supports hygienic food prep and cleanup by not giving contaminants tiny pores to occupy.
    • The quartz construction is extremely stain, scratch, abrasion, and impact resistant, so the bowl tolerates contact with cookware and utensils in normal kitchen work without rapidly showing wear.
    • A rear drain location increases open cabinet floor space underneath, which helps plan waste lines and storage layouts under a 36 inch sink base cabinet.
    • The approximate 37 lb weight reflects a substantial quartz build, giving the sink a solid feel in the mounting area while still being manageable during undermount installation.

    Undermount Fit, Cutout, And Installation Considerations

    The sink is designed for installation into quartz, granite, and solid surface countertops, which clarifies the target substrates when planning cutouts and support. Its undermount configuration leaves the rim hidden below the countertop, which produces a flush, wipe-in edge around the 32-1/2 inch by 19-1/4 inch opening and supports clean handoff between countertop fabricator and installer. A minimum 36 inch sink base cabinet requirement sets the cabinet sizing, so layout decisions around adjacent cabinets and appliances can be based on that footprint. The 3-1/2 inch drain opening size aligns with typical kitchen drain fittings, simplifying selection of standard drains and compatible garbage disposals. All external dimensions are approximate to 1/4 inch, which provides a reasonable tolerance band when fabricating the countertop cutout and positioning supporting rails or mounting systems.

    How This Single Bowl Quartz Sink Performs In Service

    Where This Karran QU-812-CN Sink Works Best

    The Karran 32-1/2 inch W x 19-1/4 inch D quartz concrete single bowl undermount sink fits best in kitchens using quartz, granite, or solid surface countertops, because it is specifically designed to be installed into these materials. The minimum cabinet size of 36 inches makes it a natural match for standard 36 inch sink base cabinets in many layouts. Its 9 inch deep bowl provides plenty of room to accommodate cookware, so it suits households that routinely handle stockpots, sheet pans, and larger items without overflow crowding the countertop. The quartz material's extreme resistance to stains, scratches, abrasion, and impact keeps the bowl looking consistent through repeated daily use, which is valuable in high-traffic family kitchens and light commercial break areas. With a rear drain location creating more storage room in the cabinet below, the sink supports projects where under-sink space is needed for waste bins, cleaning supplies, or filtration equipment. The approximate 37 lb weight and quartz construction align with solid, permanent installs where the sink is expected to stay in place for the long term.

    Details That Support Reliable Installation Results

    The sink's 80% natural quartz crystal and pure acrylic resin makeup produces a rigid structure, which helps the undermount bond remain stable along the countertop underside. Heat resistance up to 535 F allows hot water and cookware to be part of normal use without subjecting the bowl to temperatures beyond its rated range, which supports predictable performance over years of service. Its ability to withstand rapid temperature changes from hot and cold water reduces thermal cycling stresses, which helps keep the interface between sink and countertop steady. The non-porous quartz construction not only prevents the spread of germs and bacteria but also resists water absorption, which is important where the sink rim meets the underside of quartz, granite, or solid surface. The rear drain location moves the plumbing connection toward the back of the cabinet, making room at the front for storage planning while still using the standard 3-1/2 inch drain opening. With all external dimensions approximate to 1/4 inch, fabricators and installers gain a defined size window when preparing the cutout and supports, supporting repeatable fits across similar projects.

    Common Questions About This Karran Quartz Sink

    What are the overall dimensions of the QU-812-CN sink?

    The Karran QU-812-CN sink measures 32-1/2 inches wide by 19-1/4 inches deep, which defines the countertop opening and the working bowl area available for kitchen tasks.

    Which countertop materials are suitable for this quartz sink?

    The sink is designed for installation into quartz, granite, and solid surface countertops, so it integrates directly with these rigid surfacing materials in undermount applications.

    What cabinet size is required under the Karran quartz undermount sink?

    The sink requires a minimum 36 inch sink base cabinet, which sets the cabinet width when planning kitchen layouts using this single bowl model.

    How deep is the bowl on this single bowl quartz kitchen sink?

    The sink has 9 inch deep bowls, providing ample vertical space to handle tall pots and stacked dishes while keeping water inside the basin.

    What drain opening size does this rear drain quartz sink use?

    The drain opening size is 3-1/2 inches, which works with common kitchen drain fittings and most garbage disposals specified as compatible.

    How does the non-porous quartz material help in everyday use?

    The non-porous quartz material prevents the spread of germs and bacteria and resists stains, so routine cleaning maintains a hygienic work area in the kitchen.

    Select This Sink For Quartz, Granite, And Solid Surface Jobs

    The Karran quartz undermount sink in model QU-812-CN brings a 32-1/2 inch by 19-1/4 inch single bowl layout, a concrete quartz finish, and a 9 inch deep basin to projects using quartz, granite, or solid surface countertops. Its 80% natural quartz crystal construction, non-porous surface, rear drain location, and 3-1/2 inch drain opening create a straightforward choice when specifying a durable, heat resistant work sink over a 36 inch sink base cabinet.

    Color/Finish
    Concrete
    Product Type
    Undermount Sink
    Overall Sink Length (Side to Side)
    32-1/2 in
    Overall Sink Width (Front to Back)
    19-1/4 in
    Minimum Cabinet Width Required
    36 in
    Inside Bowl Depth
    9 in
    Inside Bowl Length
    30 in
    Inside Bowl Width
    16-3/4 in
    Installation Method
    Undermount
    Designed for Installation Into
    Quartz, Solid Surface, Granite
    Drain Opening Diameter
    3-1/2 in
    Bowl Configuration
    Single
    ADA Compliant
    No
    Certifications
    cUPC certified
    Material Type
    Quartz
    Supplier Pack Size
    1
    Sold In
    1
    Color/Finish
    Concrete
    Product Type
    Undermount Sink
    Overall Sink Length (Side to Side)
    32-1/2 in
    Overall Sink Width (Front to Back)
    19-1/4 in
    Minimum Cabinet Width Required
    36 in
    Inside Bowl Depth
    9 in
    Inside Bowl Length
    30 in
    Inside Bowl Width
    16-3/4 in
    Installation Method
    Undermount
    Designed for Installation Into
    Quartz, Solid Surface, Granite
    Drain Opening Diameter
    3-1/2 in
    Bowl Configuration
    Single
    ADA Compliant
    No
    Certifications
    cUPC certified
    Material Type
    Quartz
    Supplier Pack Size
    1
    Sold In
    1
    Karran
    BlackWhiteConcreteGrayBrownBisque
    $449.59/Each
    Karran 32-1/2"W x 19-1/4"D Quartz Concrete Single Bowl Undermount Sink - QU-812-CN
    Item# KAQU812-CN / MFR Part # QU-812-CN
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