KRAUS 28” Drop-In Granite Composite Workstation Kitchen Sink in Metallic Black - KGTW12-28MBL
Kraus Workstation Sinks combine advanced granite composite material with innovative workstation design to enhance the style and functionality of any kitchen. Engineered with an integrated ledge to support sliding accessories, this high-capacity sink creates a multifunctional workspace to streamline tasks from meal prep to cleanup. The included acacia cutting board allows you to prepare meals right over the sink without taking up counter space. This sink is made in Italy from an advanced quartz composite material with metallic particles that provide a shimmering effect with the look and feel of real stone. Colored all the way through, the vibrant material resists discoloration and fading over time. The easy-to-clean non-porous blend creates a hard, smooth sink surface that is resistant to scratches, stains, impact, and thermal shock. Top mount design with thick mounting deck allows you to install as a drop-in sink with any countertop material; thick deck features a beveled edge for easier cleaning. The high-capacity single bowl creates an uninterrupted surface with ample space for cookware and stacks of dishes. Designed with rounded corners for easy cleaning and a gently sloped bottom for better draining. Rear-offset drain creates a modern look and adds storage space under the sink. The naturally sound-absorbing material helps reduce noise and vibration. The installation-ready sink comes with mounting hardware and drain assembly.
Features
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- GRANITE WORKSTATION SINK with integrated ledge for sliding accessories so you can work over the sink without losing any workspace on the kitchen counter
- SINK KIT INCLUDES: Granite composite drop-in workstation sink, heavy-duty acacia hardwood cutting board, stainless steel drain assembly with strainer
- ADVANCED GRANITE COMPOSITE is made from 80% natural granite quartz with metallic particles for a shimmering effect with the look and feel of real stone – Made in ITALY with the finest raw materials for durability with resistance to impact, scratches, and thermal shock
- DROP-IN / TOP MOUNT SINK: Ideal for retrofitting, you can install this sink as a drop-in with any type of kitchen countertop – Thick deck sits flat against the countertop for a beautifully finished look
- EXTRA-THICK MOUNTING DECK is designed with a low-angle beveled edge for easy cleaning – 1 pre-drilled hole and 4 pre-scored knockout holes in mounting deck allow for easy installation of faucet and accessories
- SPACIOUS SINGLE BOWL with uninterrupted surface provides generous workspace for large cookware and stacks of dishes – Rear-offset drain increases storage space underneath the sink
- EASY-TO-CLEAN SURFACE: Ultrafine material with smooth non-porous surface is resistant to scratches and stains, helps prevent food and liquid from sticking to sink surface – Easily wipes clean with soap and water
- ENGINEERED FOR EASY DRAINING: Gently sloped bottom helps prevent water from pooling in the sink – OPTIMIZED SLOPE helps keep your fragile stemware from tipping over
- ROUNDED CORNERS allow for easy cleaning, helping to prevent build-up over time for a low-maintenance sink
- HEAVY-DUTY CUTTING BOARD made with durable ACACIA hardwood creates a stylish accent for your sink – Not prone to cracking or warping, with a non-slip design and built-in grooves that prevent spills – Easy to clean non-porous surface is resistant to odors and stains
- PREMIUM DRAIN ASSEMBLY: Stainless steel drain assembly with flip cap cover helps prevent clogging while concealing drain opening for a seamless look – Removable strainer traps food particles and lifts out for easy cleaning
- COLOR-STABLE MATERIAL: Vivid color penetrates all the way through the material for a vibrant look that resists fading and discoloration over time – Matte sink is available in metallic black, metallic brown, metallic grey, and white – HEAT SAFE up to 500°F
- INSTALLATION-READY sink comes with mounting hardware and cut-out templates for top mount installation
- NATURALLY SOUND-ABSORBING material helps reduce noise and vibration from dishes and garbage disposals for a quieter kitchen experience
- RECOMMENDED ACCESSORIES (sold separately): Roll-Up Dish Drying Rack (KRM-11) made with heavy-duty stainless steel and non-slip silicone is perfect for drying dishes right over the sink. Holds up to 85 lbs., dishwasher-safe, heat-safe, and rolls up for easy storage
- LIFETIME LIMITED WARRANTY and top-rated Customer Service team so you can choose KRAUS® products with confidence
What our Experts Think
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Premium granite composite workstation sink
The KRAUS KGTW12-28MBL is a 28" drop-in/top-mount single-bowl sink with an integrated ledge, turning it into a multifunction prep and cleanup station.
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Durable quartz composite construction
Made from ~80% natural quartz with metallic particles, delivering a stone-like feel with high resistance to scratches, stains, impact, and heat up to 500°F.
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Complete workstation accessory kit included
Comes with cutting board, drain assembly with strainer, and installation hardware for immediate kitchen functionality.
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Space-efficient 28" design
Compact footprint (approx. 28" x 22") with a deep bowl (~9.6") that still handles large cookware comfortably.
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Built for easy drop-in installation
Thick top-mount deck allows straightforward retrofit into most countertops with a clean, finished edge.
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Low-maintenance, stain-resistant surface
Non-porous granite composite prevents food and liquid absorption, making cleanup fast and simple.
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Noise-reducing solid construction
Dense composite material naturally dampens sound and vibration from washing and disposal use.
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Modern metallic black aesthetic
Deep matte finish with subtle metallic shimmer delivers a bold, high-end kitchen look.
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Strong value compact workstation upgrade
A practical choice for kitchens needing premium functionality in a smaller footprint without moving to larger undermount systems.
Q&A
Q: What is the KRAUS 28” Drop-In Granite Composite Workstation Kitchen Sink (KGTW12-28MBL) in Metallic Black?
A: A premium 28-inch granite composite workstation sink with a modern metallic black finish, designed for top-mount (drop-in) installation and built-in food prep functionality.
Q: What are its key features?
A:
- Integrated workstation ledge for sliding accessories
- Includes cutting board and stainless steel drain assembly with strainer
- Scratch, stain, and impact-resistant granite composite surface
- Heat-resistant and color-stable material with stone-like durability
- Rear offset drain for improved under-sink storage space
Q: What are the size and installation requirements?
A: Approximately 28" x 22" x 9.6" and requires a minimum 30" base cabinet
Q: What material is it made from?
A: Advanced quartz granite composite made with natural quartz and resin for a durable, stone-like finish that resists scratches, stains, and thermal shock
Q: What makes it a “workstation” sink?
A: It has a built-in ledge system that supports accessories like a cutting board or drying rack so you can prep, wash, and dry directly over the sink—saving counter space
Q: Is it easy to clean?
A: Yes, the non-porous surface resists food and liquid buildup and wipes clean easily with soap and water
Q: Does it reduce noise?
A: Yes, the dense granite composite naturally absorbs sound and reduces vibration from dishes and running water
Q: Why choose this sink?
A: It combines a durable stone-like build with a space-saving workstation design, making it ideal for efficient modern kitchens with heavy daily use.
Maintenance Tips
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Clean daily with mild dish soap + soft sponge to preserve the granite composite surface and metallic finish.
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Rinse and dry after each use to prevent water spots, mineral buildup, and dulling.
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Avoid harsh chemicals (bleach, ammonia, acids) as they can damage the resin and cause discoloration over time.
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Never use abrasive pads or steel wool to prevent scratching the surface.
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Wipe spills quickly (coffee, wine, oils, sauces) to maintain stain resistance and deep black color.
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Use included workstation accessories/grid to protect against scratches from heavy cookware.
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Avoid leaving standing water or hot pans directly in sink to reduce risk of spotting or surface stress.
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Clean ledge and corners regularly to prevent debris buildup in workstation grooves.
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Occasionally deep clean with baking soda + water paste for safe stain removal and refresh.
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Dry fully after heavy use to maintain the metallic black finish and long-term durability.