31-3/8" Undermount Large Single Bowl Quartz Composite Workstation Kitchen Sink Kit In Concrete

MODEL:

SKU:QU-670-CN-PK2

31-3/8" Undermount Large Single Bowl Quartz Composite Workstation Kitchen Sink Kit In Concrete

Name: 31-3/8" Undermount Large Single Bowl Quartz Composite Workstation Kitchen Sink Kit In Concrete
Brand: Karran
SKU: QU-670-CN-PK2
Availability: OutOfStock

MODEL:

SKU:QU-670-CN-PK2

Dimensions

31-3/8" x 18-7/8"
x 9-1/2"

Material

Quartz Composite

Mount Type

Undermount

Cabinet

36"

Finish:Concrete

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The Karran 31-3/8" Undermount Large Single Bowl Quartz Composite Workstation Kitchen Sink Kit in Concrete is designed for installation in granite, quartz, and solid surface countertops. Made from an 80% quartz and granite composite blended with 20% acrylic resin, it brings the look and feel of natural stone together with a 1/2" positive reveal ledge built for workstation accessories. The refined matte surface is heat resistant up to 535°F, and the dense composite naturally absorbs vibration to quiet running water and dishwashing noise. The kit includes a flush-fit bamboo cutting board, a roll-up drying rack, and a concrete basket strainer, so this concrete quartz workstation sink is ready to prep, wash, and dry from the day it is installed.

SKU QU-670-CN-PK2

Installation Method Undermount

Material Quartz Composite

Bowl Configuration Single Bowl

Overall Dimensions 31-3/8" x 18-7/8" x 9-1/2"

Drain Size 3-1/2"

Minimum Cabinet Size 36"

Finish Matte

Workstation Ledge Design: Prep, Rinse, and Dry in One Place

The 1/2" positive reveal along the rim of this concrete undermount quartz workstation sink creates a dedicated ledge for accessories, so the included bamboo cutting board sits flush and level with the countertop for a more integrated look and effortless cutting. That flush fit keeps the board stable during use rather than teetering on an uneven edge, and it extends the usable prep surface directly over the bowl. The 29" x 16-3/8" x 9" bowl has no center divide, giving you one large, open basin for washing oversized pots, sheet pans, and roasting trays without tilting, stacking, or splashback. Rounded corners throughout the bowl wipe clean easily, with no tight seams for food residue to collect.

An undermount installation lets the countertop run uninterrupted to the edge of the cutout, with no rim or lip resting on top of the material, so crumbs and spills sweep straight into the bowl. The reversible offset drain lets you choose the drain location at installation, moving the plumbing to whichever side of the cabinet suits your layout and leaving more usable storage space below the sink. The included roll-up drying rack supports up to 40 lbs, is dishwasher safe, and rolls up for compact storage when the counter needs the room. A sink-matched basket strainer catches food debris to help keep the drain clear, and its color coordinates with the sink for a finished look.

Matte Concrete: Industrial, Refined, and Neutral

The neutral concrete finish brings an artisanal, tactile quality to any modern kitchen. It serves as a nuanced, mid-tone canvas that complements the cool precision of stainless steel or the rugged charm of hammered copper. It is a natural partner for mixed-material palettes, such as exposed brick or reclaimed wood, providing a sophisticated, tonal balance against grey-veined stone. Engineered with a subtle micro-texture, the surface diffuses light unevenly to mimic the depth of natural cement, offering a layered, multi-dimensional look that feels lived-in yet polished.

Quartz Composite Performance: Durable, Sound-Absorbent, and Low-Maintenance

Built from an 80% quartz and granite composite blended with 20% acrylic resin, this concrete quartz kitchen sink delivers a dense, non-porous surface that resists staining, scratching, abrasion, and impact through years of demanding use. The color is integrated into the material rather than painted on, so it stays consistent across the entire basin. Rated heat resistant up to 535°F, the surface handles hot cookware set directly in the bowl without damage. Sealing is not required, and routine cleaning with mild soap and water keeps the matte finish in excellent condition. The same dense composite naturally absorbs vibration and sound, dampening the noise of running water and cookware for a quieter kitchen.

Specifications and What’s Included

This concrete quartz workstation sink measures 31-3/8" x 18-7/8" x 9-1/2" overall, with a 29" x 16-3/8" x 9" bowl and a 3-3/4" drain, and it requires a minimum 36" cabinet. A cutout template and digital DXF file are included so the sink cutout is specific to this workstation installation, along with mounting clips for a secure undermount fit. The kit includes a concrete basket strainer, a bamboo cutting board, and a roll-up drying rack, giving you everything needed to use the ledge on day one.

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31-3/8" Undermount Large Single Bowl Quartz Composite Workstation Kitchen Sink Kit In Concrete

31-3/8" Undermount Large Single Bowl Quartz Composite Workstation Kitchen Sink Kit In Concrete

Workstation Ledge Design: Prep, Rinse, and Dry in One Place

Matte Concrete: Industrial, Refined, and Neutral

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