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    Sinks
    1. Home
    2. Kitchen & Bath Cabinet Accessories
    3. Sinks and Accessories
    4. Sinks
    Item # KAQU811-BI • Mfr # QU-811-BI

    Karran 32"W x 21-1/4"D Quartz Bisque Double 60/40 Bowl Undermount Sink - QU-811-BI

    • Technical data, QU-811-BI
      Technical data, QU-811-BI

    Description

    Karran Quartz Undermount Sink For Busy Kitchens

    Karran quartz undermount sink uses 80 percent natural quartz crystals with pure acrylic resin, creating a rigid bowl that supports daily kitchen use where impact resistance and dimensional stability are important on the job. The external bowl dimensions of 32-3/8 inches by 21-1/4 inches by 9 inches size the sink for a standard kitchen run where installers balance basin capacity with cabinet layout. The double 60 40 bowl configuration provides one larger and one smaller basin, which helps organize washing, rinsing, or prep work during use. The left bowl dimensions of 16-1/2 inches by 21-1/4 inches by 9 inches give extra volume on the working side, while the right bowl dimensions of 11-1/2 inches by 16-3/4 inches by 9 inches suit lighter prep and cleaning tasks. The bisque color option supports design coordination where a soft, neutral tone is required. All external dimensions are approximate to 1/4 inch, guiding cutout and support planning.

    Quartz Sink Details That Support Daily Use

    • The sink is made from 80 percent natural quartz crystals and pure acrylic resin, forming a hard surface that supports routine loading of pots and pans without the flex associated with lighter materials.
    • The quartz material is non-porous, prohibiting the spread of germs and bacteria, which helps maintain a cleaner working basin surface during repeated food prep and cleanup cycles.
    • The sink is heat safe up to 535 degrees F and can withstand rapid temperature changes from hot and cold water, allowing installers and users to manage boiling-water discharge without thermal damage in typical kitchen conditions.
    • The double 60 40 bowl layout creates two separate working areas, which helps organize wash and rinse tasks or split prep and cleanup so the workflow stays controlled in tight kitchen schedules.
    • The sink is part of a series available in six colors - white, bisque, black, brown, concrete, and grey - so project planners can align basin color with countertop and cabinet finishes across different jobs.
    • A 25 years Limited Warranty against manufacturer's defects supports long-term planning, giving professionals a defined coverage period that aligns with typical kitchen service life expectations.

    Undermount Quartz Sink Fit And Cutout Planning

    The sink is suitable for top mounting into any type of countertop, which gives installers flexibility when working with laminate, solid surface, or stone tops where a drop-in configuration is preferred. At the same time, the external bowl dimensions of 32-3/8 inches by 21-1/4 inches by 9 inches let fabricators plan a cutout that supports either undermount or top-mount installation styles within the overall cabinet span. All external dimensions being approximate to 1/4 inch signals that field measurement and template layout drive the final cut size so the rim supports the chosen mounting method. The matching left and right bowl depth of 9 inches helps keep drain connections consistent below the counter, simplifying trap alignment and routing during rough-in and finish plumbing stages.

    How This Karran Double Bowl Sink Works In Practice

    Where The 60 40 Quartz Sink Performs Best

    The 32-3/8 inch width and 21-1/4 inch front-to-back dimension place this Karran quartz kitchen sink in a range suited to common base cabinet spans, so it fits typical residential kitchen layouts where full-size functionality is needed. The double 60 40 bowl configuration sets a larger left bowl at 16-1/2 by 21-1/4 by 9 inches, giving ample room for washing larger cookware within a single basin. The smaller right bowl at 11-1/2 by 16-3/4 by 9 inches serves as a dedicated prep or rinse station, so users can keep food handling and cleanup separated during meal production. Because the quartz material is non-porous and prohibits the spread of germs and bacteria, it supports food prep applications where surface hygiene is important around raw ingredients.

    The bisque finish positions this bisque quartz undermount sink as a choice for warm-toned kitchens where designers want the basin to coordinate with beige, cream, or earth-toned countertops. Heat safety up to 535 degrees F means the sink can accept hot water discharge or cookware contact from normal cooking tasks without thermal deformation in ordinary residential use. Resistance to rapid temperature changes from hot and cold water lets installers route mixed-use faucets over either bowl without concern about thermal shock cycles during daily operation.

    Details That Support Reliable Installation Results

    The combination of 80 percent natural quartz crystals and pure acrylic resin creates a dense structure, so the sink body provides a solid bearing surface at the rim and along the walls when mounted. This rigidity helps maintain alignment with the countertop edge over time, which matters in undermount or top-mount settings where joint lines must remain consistent. With all external dimensions approximate to 1/4 inch, fabricators can work from these values while allowing for field adjustments to achieve a tight fit against the countertop material.

    The left and right bowls sharing a 9 inch depth keeps under-sink plumbing at a similar elevation, which simplifies setup of drains, traps, and branch connections during installation. The sink being suitable for top mounting into any type of countertop means crews can standardize fitment procedures across laminate, solid surface, or stone tops when a drop-in solution is specified. The 25 years Limited Warranty against manufacturer's defects supports selection for long-term projects, aligning the product with kitchen timelines where a stable, warrantied basin is required.

    Common Questions About The Karran QU-811-BI Sink

    What are the overall dimensions of the Karran QU-811-BI sink?

    The Karran QU-811-BI sink has external bowl dimensions of 32-3/8 inches by 21-1/4 inches by 9 inches, which guides cabinet selection and countertop cutout sizing on installation projects.

    How are the two bowls sized in this 60 40 sink?

    The left bowl measures 16-1/2 by 21-1/4 by 9 inches, and the right bowl measures 11-1/2 by 16-3/4 by 9 inches, creating a larger wash basin and a smaller prep or rinse basin.

    What material is used to construct this quartz sink?

    The sink is made from 80 percent natural quartz crystals and pure acrylic resin, producing a dense, rigid basin that supports everyday kitchen use with a solid-feeling work surface.

    Is the Karran quartz sink suitable for high-temperature water?

    The Karran quartz kitchen sink is heat safe up to 535 degrees F and can withstand rapid temperature changes from hot and cold water, supporting typical residential cooking and cleanup tasks.

    How does the non-porous quartz surface help in a kitchen?

    The durable quartz material is non-porous and prohibits the spread of germs and bacteria, which supports a more hygienic work area during repeated food preparation and cleanup in the sink bowls.

    What warranty coverage does this Karran sink provide?

    The Karran QU-811-BI sink carries a 25 years Limited Warranty against manufacturer's defects, aligning with long-term kitchen service expectations on residential and remodeling projects.

    Selecting This Quartz Sink For Your Next Project

    This Karran quartz undermount sink brings a 32-3/8 by 21-1/4 by 9 inch double 60 40 bowl layout, giving one large and one smaller basin that support organized kitchen workflows. The 80 percent natural quartz and pure acrylic resin construction, combined with a non-porous surface that prohibits the spread of germs and bacteria, supports demanding food prep and cleanup use. Heat safety up to 535 degrees F and resistance to rapid temperature changes from hot and cold water extend its utility across typical cooking tasks. With suitability for top mounting into any type of countertop, this Karran QU-811-BI sink provides flexibility for different counter materials and mounting preferences on your next installation.

    Color/Finish
    Bisque
    Product Type
    Undermount Sink
    Overall Sink Length (Side to Side)
    32 in
    Overall Sink Width (Front to Back)
    21-1/4 in
    Minimum Cabinet Width Required
    36 in
    Inside Depth Left
    9 in
    Inside Depth Right
    9 in
    Inside Length Left
    17-1/8 in
    Inside Length Right
    11-1/2 in
    Inside Width Left
    19 in
    Inside Width Right
    16-3/4 in
    Installation Method
    Undermount
    Designed for Installation Into
    Quartz, Solid Surface, Granite
    Drain Opening Diameter
    3-1/2 in
    Bowl Configuration
    Double
    Bowl Split
    60/40
    ADA Compliant
    No
    Certifications
    cUPC certified, IAPMO certified
    Material Type
    Quartz
    Supplier Pack Size
    1
    Sold In
    1
    Color/Finish
    Bisque
    Product Type
    Undermount Sink
    Overall Sink Length (Side to Side)
    32 in
    Overall Sink Width (Front to Back)
    21-1/4 in
    Minimum Cabinet Width Required
    36 in
    Inside Depth Left
    9 in
    Inside Depth Right
    9 in
    Inside Length Left
    17-1/8 in
    Inside Length Right
    11-1/2 in
    Inside Width Left
    19 in
    Inside Width Right
    16-3/4 in
    Installation Method
    Undermount
    Designed for Installation Into
    Quartz, Solid Surface, Granite
    Drain Opening Diameter
    3-1/2 in
    Bowl Configuration
    Double
    Bowl Split
    60/40
    ADA Compliant
    No
    Certifications
    cUPC certified, IAPMO certified
    Material Type
    Quartz
    Supplier Pack Size
    1
    Sold In
    1
    Karran
    ConcreteBlackGrayWhiteBisqueBrown
    $441.16/Each
    Karran 32"W x 21-1/4"D Quartz Bisque Double 60/40 Bowl Undermount Sink - QU-811-BI
    Item# KAQU811-BI / MFR Part # QU-811-BI
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