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    Sinks
    1. Home
    2. Kitchen & Bath Cabinet Accessories
    3. Sinks and Accessories
    4. Sinks
    Item # KAQU712-GR • Mfr # QU-712-GR

    Karran 32"W x 19-1/2"D Quartz Gray Single Bowl Undermount Sink - QU-712-GR

    Description

    Karran QU-712-GR Undermount Sink For New Installs

    Karran QU-712-GR undermount sink is a quartz gray single bowl unit designed for new kitchen countertop installations where a clean, under-counter look is required. Its external bowl dimensions of 32-1/2 x 19-1/2 x 9 inches define the overall footprint, so fabricators can plan cabinet layouts and cutouts confidently. Internal bowl dimensions of 30 x 15-3/4 x 9 inches define the working basin, giving installers a clear sense of usable sink space when aligning with faucets and adjacent components. The sink is manufactured from 80 percent crushed quartz plus 20 percent acrylic resin, creating a quartz composite structure that supports everyday kitchen use. A 1-1/4 x 3/4 inch machined resin matrix rim provides a defined edge profile, which helps with accurate undermount seating against the underside of the countertop. All external dimensions are approximate to 1/4 inch, which gives fabricators a practical tolerance window during layout.

    Quartz Sink Details That Support Fabrication

    • The 80 percent crushed quartz plus 20 percent acrylic resin construction forms a quartz composite body, which provides a consistent material for cutting and polishing edges during installation work.
    • The 1-1/4 x 3/4 inch machined resin matrix rim creates a uniform mounting band around the bowl, helping fabricators achieve even support and a consistent reveal or flush finish along the countertop edge.
    • The sink bowl surface has a matte finish, which produces a low-sheen appearance that blends with many countertop textures and helps conceal everyday water marks during normal kitchen use.
    • The 3-1/2 inch waste opening matches a common drain size, simplifying selection of compatible strainer baskets and drain fittings when completing the plumbing connection under the cabinet.
    • All external dimensions being approximate to 1/4 inch provides installers with a defined tolerance range, allowing practical adjustment of cutouts and support framing without constant remeasurement.

    Undermount Installation And Countertop Fit Details

    This Karran quartz single bowl undermount sink is designed specifically for undermount installation, so the bowl attaches to the underside of the countertop for a seamless interior edge. It may not be top mounted, which keeps layout decisions focused on an under-counter installation method. The sink can only be installed in new countertops, not existing countertops with an existing sink cutout, which directs fabricators to plan the cutout during initial countertop fabrication rather than retrofit work. It may be undermounted to all stone products, giving stone shops flexibility across different stone materials. A 1/8 inch overhang is recommended at the countertop edge but the sink can also be flush installed, so installers can choose between a slight reveal or a flush configuration to match project requirements.

    Quartz Gray Single Bowl Sink In Real Use

    Where This Karran Quartz Sink Works Best

    This Karran quartz single bowl sink fits projects that call for a quartz gray undermount basin in a new kitchen countertop. Its 32-1/2 x 19-1/2 x 9 inch external bowl dimensions align with standard kitchen base cabinet runs, supporting layouts that need a single, uninterrupted bowl. Internal bowl dimensions of 30 x 15-3/4 x 9 inches create a sizable working space, accommodating typical kitchen tasks while keeping the cutout within common stone slab widths. Because it is manufactured from 80 percent crushed quartz plus 20 percent acrylic resin, the sink provides a quartz composite surface that pairs well with stone countertops in residential kitchens. The matte finish on the sink bowl surface supports designs where a low-glare appearance is preferred, helping the sink visually integrate with honed or matte countertop finishes in the same workspace.

    Details That Support Accurate Stone Fabrication

    The 1-1/4 x 3/4 inch machined resin matrix rim gives stone fabricators a precise reference band for routing and polishing the underside of the stone, which supports an even reveal or tight flush fit along the sink edge. All external dimensions being approximate to 1/4 inch gives installers a numeric tolerance when planning cabinet clearances and cutouts, which helps reduce rework during dry-fit and final setting. The 3-1/2 inch waste opening provides a defined drain location that works with standard-size strainer baskets, simplifying layout of plumbing and disposal units beneath the cabinet. Undermount installation being required focuses fabrication on creating a clean underside profile, which can streamline shop processes when multiple quartz sinks are set into the same stone run. The sink may be undermounted to all stone products, allowing fabricators to use one installation approach across granite, quartz, and other stone-based countertop materials.

    Common Questions About This Quartz Undermount Sink

    What are the overall dimensions of the Karran QU-712-GR sink?

    The Karran QU-712-GR sink has external bowl dimensions of 32-1/2 x 19-1/2 x 9 inches, which guides cabinet sizing and stone cutout planning during new kitchen installations.

    What size is the working bowl area inside this sink?

    The sink provides internal bowl dimensions of 30 x 15-3/4 x 9 inches, defining the usable basin space for everyday kitchen tasks and helping align faucet placement and accessories.

    What material is this Karran quartz sink made from?

    The sink is manufactured from 80 percent crushed quartz plus 20 percent acrylic resin, creating a quartz composite structure suited to pairing with stone countertops.

    How must the Karran QU-712-GR sink be installed?

    The Karran QU-712-GR sink requires undermount installation and may not be top mounted, so the bowl is attached beneath the countertop for a clean internal edge.

    Is this quartz sink suitable for existing countertops?

    The sink can only be installed in new countertops, not existing countertops with an existing sink cutout, so it is intended for new fabrication projects.

    What drain opening size does this sink provide?

    The sink has a 3-1/2 inch waste opening, aligning with common drain and strainer basket sizes for straightforward plumbing connections.

    Choose This Sink For New Stone Countertops

    The Karran QU-712-GR undermount sink offers a quartz gray single bowl layout with defined external and internal dimensions, which supports precise stone fabrication and cabinet planning. Its 80 percent crushed quartz plus 20 percent acrylic resin construction pairs well with stone countertops in new installations. The machined 1-1/4 x 3/4 inch resin matrix rim and required undermount configuration work together to deliver a clean under-counter transition that suits modern kitchen layouts. For projects using stone products where a single bowl, matte finish, quartz gray undermount sink is specified, this model aligns closely with those requirements and streamlines layout choices.

    Catalog
    X-28
    Color/Finish
    Gray
    Product Type
    Undermount Sink
    Overall Sink Length (Side to Side)
    32 in
    Overall Sink Width (Front to Back)
    19-1/2 in
    Minimum Cabinet Width Required
    36 in
    Inside Bowl Depth
    9 in
    Inside Bowl Length
    30 in
    Inside Bowl Width
    16-1/4 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, IAPMO certified
    Material Type
    Quartz
    Supplier Pack Size
    1
    Sold In
    1
    Catalog
    X-28
    Color/Finish
    Gray
    Product Type
    Undermount Sink
    Overall Sink Length (Side to Side)
    32 in
    Overall Sink Width (Front to Back)
    19-1/2 in
    Minimum Cabinet Width Required
    36 in
    Inside Bowl Depth
    9 in
    Inside Bowl Length
    30 in
    Inside Bowl Width
    16-1/4 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, IAPMO certified
    Material Type
    Quartz
    Supplier Pack Size
    1
    Sold In
    1
    Würth Baer Supply CompanyWürth Baer Supply Company•Built For Those Who Build The World™
    (800) 289-2237
    Vernon Hills, IL
    (800) 289-2237
    Vernon Hills, IL
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    Karran
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    $441.16/Each
    Karran 32"W x 19-1/2"D Quartz Gray Single Bowl Undermount Sink - QU-712-GR
    Item# KAQU712-GR / MFR Part # QU-712-GR
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