6 Best Alternatives to the Kraus 31-Inch Undermount Quartz Composite (2026)
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You might be looking for kraus black onyx 31 in alternatives if the original sink does not fit your kitchen layout. The Kraus 31-Inch Undermount Quartz Composite Sink features a deep 8 7/8-inch bowl and a 33-inch minimum cabinet requirement. Its quartz composite material offers durability and easy cleaning. However, you may need a wider 33-inch or 36-inch sink for larger cabinets. Some users prefer workstation models with ledges for prep space. Others might want a drop-in installation for simpler mounting. This list highlights options that share key specifications with the original product.
We selected these alternatives because their specs overlap with the Kraus model. All listed sinks use granite composite material and feature black coloring. Most use undermount installation for a seamless look. The list includes single-bowl designs similar to the original, but with varying dimensions. You can find options for standard 36-inch cabinets or smaller 33-inch spaces. Workstation sinks add tracks and accessories for extra functionality. Compact models suit secondary spaces like bars or laundry rooms. Each choice maintains the durable, stain-resistant qualities of the original. This guide helps you find a sink that matches your specific cabinet size and usage needs.
How these alternatives compare
Lordear 33-Inch Black Quartz Composite Undermount Sink
The Lordear 33-Inch model widens your options for standard 36-inch base cabinets. It measures 33 inches long and 19 inches wide, offering more counter clearance than the Kraus 31-Inch version. The bowl depth is slightly deeper at 9.65 inches. You gain extra width for larger cookware. You sacrifice the specific 31-inch footprint required for tighter 33-inch cabinet setups. This sink suits homeowners who prioritize a broader basin and standard cabinet compatibility over the compact dimensions of the original. It maintains the same black granite composite material for consistent durability and stain resistance. The undermount installation style remains identical, preserving the sleek, seamless look against your countertop. It is a practical swap if your cabinet space allows for the increased length.
Fulorni 33 in Black Workstation Sink
The Fulorni 33-Inch Workstation Sink adds significant utility through its integrated ledge system. It shares the same 33-inch length and 19-inch width as the Lordear but includes tracks for colanders and cutting boards. The bowl depth matches at 9.65 inches. You gain a dedicated prep area that transforms the sink into a workspace. You give up the simple, uncluttered basin of the Kraus 31-Inch model. This option is ideal for cooks who frequently wash and prep large meals simultaneously. The black granite composite construction ensures it withstands heat and impact just like the original. The undermount design keeps cleanup easy. If your workflow involves heavy food preparation, the workstation features provide more functionality than the standard deep bowl of the Kraus.
Kraus 32-Inch Granite Composite Workstation Sink
The Kraus 32-Inch Granite Composite Workstation Sink offers a middle ground in length and added features. It is 29 inches wide and 19 inches deep, with a height of 10 inches. This model includes a built-in ledge for accessories, similar to the Fulorni. You get prep space and the same brand reliability as the original. You sacrifice the single-bowl simplicity and the exact 31-inch length of the Kraus 31-Inch model. The deeper 10-inch height accommodates very large pots. This sink is best for users with larger cabinets who want workstation capabilities without switching brands. The black granite composite material provides familiar durability and easy maintenance. It fits well in kitchens where you need both washing capacity and a dedicated area for rinsing vegetables or draining pasta.
Kichae 30-Inch Undermount Workstation Sink
The Kichae 30-Inch Undermount Workstation Sink is slightly shorter than the original Kraus 31-Inch model. It measures 30 inches long and 19 inches wide, with a 9-inch depth. It includes tracks for accessories, adding prep functionality. You gain a workstation setup in a more compact footprint. You give up the extra length of the Kraus 31-Inch version. This sink is suitable for kitchens with 33-inch cabinets where you want workspace features but have limited linear space. The black granite composite material ensures it matches the aesthetic and durability of the original. The undermount installation maintains the clean lines you likely appreciate. If your primary need is washing large items with added prep options, this compact workstation is a practical alternative.
Kraus Quarza 24-Inch Granite Composite Sink
The Kraus Quarza 24-Inch Sink is a compact option for smaller kitchens. It measures 24 inches long and 18.1 inches wide, with a height of 8.25 inches. It supports both undermount and drop-in installation, offering more flexibility than the original. You gain a smaller footprint that fits tighter spaces. You sacrifice the large capacity and deep bowl of the Kraus 31-Inch model. This sink is ideal for users who prioritize easy maintenance and durability in a smaller size. The black granite composite material provides the same stain and impact resistance. The lower height may be preferable for users who prefer a shallower bowl. It is a solid choice for secondary kitchens or smaller primary spaces where the original sink would be too large.
MONSINTA 17-Inch Granite Composite Sink
The MONSINTA 17-Inch Granite Composite Sink is designed for compact secondary spaces. It measures 17 inches long and 19 inches wide, with a height of 10 inches. This is a significantly smaller sink than the Kraus 31-Inch model. You gain a durable option for bars, laundry rooms, or RVs. You sacrifice the capacity needed for primary kitchen tasks. The black granite composite material ensures it is as durable as the original. The undermount installation style allows for easy cleaning. This sink is impractical as a main kitchen sink but serves well in smaller, dedicated spaces. If you need a compact, heavy-duty sink for a specific area, this model offers the same material quality in a much smaller package. It is not a direct replacement for your primary kitchen sink.
Quick picks
Our 7 picks
Kraus 31-Inch Undermount Quartz Composite Sink
Best for: deep single-bowl undermount installation
- Installation Type
- Undermount
- Material
- Quartz Composite
- Exterior Dimensions
- 30 1/2” L x 17” W x 9 1/4” D
- Bowl Depth
- 8 7/8”
- Minimum Cabinet Size
- 33”
- Bowl Configuration
- Single Bowl
View on Amazon: Kraus 31-Inch Undermount Quartz Composite Sink Affiliate link
This undermount granite composite sink features a 31-inch exterior length and a 30.5-inch overall length. It has a single bowl configuration with a depth of 8 7/8 inches. The material is a durable quartz composite that resists scratches and stains. You need a minimum 33-inch cabinet for installation. The weight is 30.4 pounds. It suits those wanting a deep, easy-clean basin for standard kitchen layouts.
Pros
- Single bowl design offers ample space for large pots
- Quartz composite material resists impact and scratches
- Undermount installation allows wiping debris directly into the sink
- Smooth non-porous surface simplifies cleaning and stain resistance
Cons
- Requires a minimum 33-inch base cabinet for fit
- Sold without a garbage disposal in the base option
- Weight of 30.4 pounds requires sturdy cabinet support
Good fit if
- You need a single-bowl sink for large cookware
- You have a 33-inch or larger base cabinet
- You prefer undermount installation for easy cleanup
Skip if
- You require a double-bowl configuration
- Your base cabinet is smaller than 33 inches
- You need a pre-installed garbage disposal included
Verdict: Kraus Black Onyx 31 in Single Bowl fits kitchens with 33-inch cabinets needing a deep, durable basin. Its undermount design and quartz composite build make it ideal for users prioritizing easy maintenance and modern aesthetics.
Lordear 33-Inch Black Quartz Composite Undermount Sink
Best for: Standard 36-inch kitchen cabinets
- Installation Type
- Undermount
- Material
- Quartz Granite Composite
- Exterior Dimensions
- 33" x 19"
- Bowl Depth
- 8.8"
- Minimum Cabinet Size
- 36"
- Bowl Configuration
- Single Bowl
View on Amazon: Lordear 33-Inch Black Quartz Composite Undermount Sink Affiliate link
This Lordear sink is a 33-inch undermount model made from quartz composite. It features a black finish and measures 33 by 19 inches on the outside. The interior bowl depth is 8.8 inches, requiring a minimum 36-inch cabinet. It includes a drain assembly, dish grid, and rack. This setup suits you if you want a durable, noise-reducing kitchen sink with a non-porous surface.
Pros
- Made of thick quartz composite for durability
- Undermount installation fits most standard cabinets
- Includes stainless steel dish grid and drain assembly
- R10 rounded corners aid in easy cleaning
- Non-porous surface resists stains and scratches
Cons
- Requires a minimum 36-inch cabinet size
- 8.8-inch bowl depth is shallower than deep models
- No visible sound insulation rating in specifications
Good fit if
- You need a 33-inch wide undermount sink
- You have a 36-inch or larger base cabinet
- You prefer a black quartz composite finish
Skip if
- You only have a 33-inch or 34-inch cabinet
- You need a double-bowl configuration
- You require a drop-in installation style
Verdict: Lordear 33-Inch Black Undermount Granite Sink offers a spacious single bowl for standard 36-inch cabinets. It is a solid choice for homeowners prioritizing material durability and included accessories over deep-bowl capacity.
Fulorni 33 in Black Workstation Sink
Best for: large prep workspaces in modern kitchens
- Installation Type
- Undermount
- Material
- Quartz Composite
- Exterior Dimensions
- 33" x 19"
- Bowl Depth
- 8.9"
- Minimum Cabinet Size
- 36"
- Workstation Ledge
- Track
View on Amazon: Fulorni 33 in Black Workstation Sink Affiliate link
This Fulorni sink is a 33-inch by 19-inch undermount unit made from quartz composite. It features a matte black finish and a single bowl design. The internal depth is 8.9 inches, fitting inside a minimum 36-inch base cabinet. It includes ledges for workstation accessories. You get a solid wood cutting board, colander, and drying rack included. It suits those needing a large workspace.
Pros
- Includes workstation accessories like a cutting board and colander
- Large 33-inch width provides ample washing space
- 8.9-inch internal bowl depth fits large pots
- Matte black quartz composite resists scratches and stains
Cons
- Heavier at 45 pounds requires sturdy cabinet support
- Short 3-month return policy compared to industry standards
- Single bowl configuration limits multitasking options
Good fit if
- You need a large basin for washing big cookware
- You want built-in workspace ledges for prep tasks
- You prefer a matte black finish for modern kitchens
Skip if
- You require a double bowl for separate washing and rinsing
- You need a longer warranty than three months
- Your base cabinet is smaller than 36 inches wide
Verdict: Fulorni 33x19 Workstation Sink offers significant prep space through its included ledges and accessories. It is a solid option for cooks who prioritize large single-bowl capacity and integrated workspace features over multi-bowl flexibility.
Kraus 32-Inch Granite Composite Workstation Sink
Best for: large cabinets needing prep space
- Installation Type
- Undermount
- Material
- Quartz Composite
- Exterior Dimensions
- 32 in. L x 19 in. W x 10 in. D
- Bowl Depth
- 9 3/8"
- Minimum Cabinet Size
- 36"
- Workstation Ledge
- Integrated ledge
View on Amazon: Kraus 32-Inch Granite Composite Workstation Sink Affiliate link
This Kraus undermount sink measures 32 inches long and 19 inches wide. It features a single bowl with a 9 3/8-inch depth. The quartz composite construction resists scratches and heat up to 500°F. An integrated workstation ledge allows you to slide accessories like cutting boards directly into the sink. You need a 36-inch minimum cabinet size for installation. This design suits those who want extra workspace for food prep.
Pros
- Integrated workstation ledge for sliding accessories
- Heat safe up to 500°F
- Single bowl offers generous uninterrupted workspace
- Quartz composite resists scratches and impact
Cons
- Requires a 36-inch minimum cabinet size
- Rear off-set drain limits left-side bowl space
- Heavier at 33.1 pounds than standard sinks
Good fit if
- You need a large single-bowl sink for big pots
- You want to prep food directly over the sink
- You have a 36-inch or larger base cabinet
Skip if
- You have a 33-inch or smaller cabinet
- You prefer a double-bowl configuration
- You want a drop-in installation style
Verdict: Kraus 32-Inch Black Granite Workstation Sink provides a durable, heat-resistant surface with a built-in ledge for accessories. It fits well in larger kitchens where you need ample room for washing and prep.
Kichae 30-Inch Undermount Workstation Sink
Best for: large pots and workspace needs
- Installation Type
- Undermount
- Material
- Quartz Composite
- Exterior Dimensions
- 30" x 19"
- Bowl Depth
- 8.9"
- Minimum Cabinet Size
- 33"
- Workstation Ledge
- Single-tier
View on Amazon: Kichae 30-Inch Undermount Workstation Sink Affiliate link
This Kichae sink is a 30-inch undermount unit made from black quartz composite. It features a single bowl with 8.9-inch depth and a workstation design with front and back tracks. The interior measures 28 by 17 inches, providing ample space for large cookware. It requires a minimum 33-inch cabinet. The package includes accessories like a cutting board and colander.
Pros
- 30-inch single bowl with 8.9-inch depth
- Workstation tracks for sliding accessories
- Includes cutting board, colander, and drying rack
- Gently sloped bottom for easy drainage
Cons
- Requires a minimum 33-inch base cabinet
- Slightly lower heat resistance than pure quartz
- Standard 3 1/2-inch drain opening
Good fit if
- You need a large 30-inch basin for big pots
- You want a workstation design with included accessories
- You have a 33-inch or wider base cabinet
Skip if
- You only have a 30-inch or 32-inch cabinet
- You prefer a double bowl configuration
- You need a 32-inch or larger sink width
Verdict: Kichae 30-Inch Black Workstation Sink fits kitchens with 33-inch cabinets that need extra workspace. The included tracks and accessories make it a practical option for washing large items.
Kraus Quarza 24-Inch Granite Composite Sink
Best for: small kitchens needing compact durable drop-in sink
- Installation Type
- Drop-In, Undermount
- Material
- Quartz Composite
- Exterior Dimensions
- 24” L x 18 1/8” W x 8 5/8” D
- Bowl Depth
- 8 1/4”
- Minimum Cabinet Size
- 27”
- Bowl Configuration
- Single Bowl
View on Amazon: Kraus Quarza 24-Inch Granite Composite Sink Affiliate link
This KRAUS Quarza model is a 24-inch single-bowl sink made from quartz composite. It installs as a drop-in or undermount unit. The exterior measures 24 by 18 1/8 inches, requiring a 27-inch minimum cabinet. The bowl depth is 8 1/4 inches. Its black onyx finish resists stains and scratches. This compact size suits smaller kitchens or secondary prep areas where space is limited.
Pros
- Quartz composite construction resists impact and scratches
- Smooth non-porous surface allows easy cleaning
- Fits 24-inch countertop cutouts for drop-in install
- Thick mounting deck with beveled edge simplifies wiping
Cons
- 24-inch width is smaller than the 31-inch standard on this list
- Single bowl configuration limits simultaneous washing and rinsing
- Minimum 27-inch cabinet requirement restricts installation options
Good fit if
- You need a compact sink for a small kitchen
- You want a black quartz composite that installs as a drop-in
- You prefer a single-bowl layout for easier loading
Skip if
- You require a 31-inch or larger basin for large cookware
- You need a double-bowl configuration for multitasking
- Your base cabinet is smaller than 27 inches wide
Verdict: KRAUS Quarza 24-Inch Black Granite Sink fits small kitchens needing a durable, stain-resistant drop-in option. It works well for users who prioritize easy maintenance and compact dimensions over large capacity.
MONSINTA 17-Inch Granite Composite Sink
Best for: compact secondary spaces like bars or RVs
- Installation Type
- Undermount, Topmount
- Material
- Granite Composite Quartz stone
- Exterior Dimensions
- 17" x 18-3/4"
- Bowl Depth
- 9-1/4"
- Target Space
- RVs, Kitchen
- Color
- Black
View on Amazon: MONSINTA 17-Inch Granite Composite Sink Affiliate link
This is a small, single-bowl sink made from granite composite quartz. It measures 17 inches wide and 10 inches deep. The design supports both undermount and topmount installation. You get a stainless steel grid, drain assembly, and drying rack included. It resists heat, scratches, and stains. This compact unit suits secondary spaces like bars, RVs, or laundry rooms.
Pros
- Granite composite quartz material resists heat and scratches
- Supports undermount or topmount installation
- Includes stainless steel grid, drain, and drying rack
- Smooth surface resists stains and is easy to clean
Cons
- 17-inch width is too small for primary kitchen cooking
- Single bowl lacks a dedicated drying or prep area
- 10-inch depth may cause splashing with large pots
Good fit if
- You need a compact sink for a bar or RV
- You want a secondary sink for prep or cleanup
- You prefer the flexibility of undermount or topmount install
Skip if
- You need a main kitchen sink for large pots
- You require a double-bowl configuration
- You want a deep bowl for washing bulky items
Verdict: MONSINTA 17-Inch Black Granite Composite Sink is a durable, compact option for secondary spaces like bars or laundry rooms, but its small size makes it impractical as a primary kitchen sink.
Specifications side by side
| Spec | Kraus 31-Inch Undermount Quartz Composite Sink | Lordear 33-Inch Black Quartz Composite Undermount Sink | Fulorni 33 in Black Workstation Sink | Kraus 32-Inch Granite Composite Workstation Sink | Kichae 30-Inch Undermount Workstation Sink | Kraus Quarza 24-Inch Granite Composite Sink | MONSINTA 17-Inch Granite Composite Sink |
|---|---|---|---|---|---|---|---|
| Installation Type | Undermount | Undermount | Undermount | Undermount | Undermount | Drop-In, Undermount | Undermount, Topmount |
| Material | Quartz Composite | Quartz Granite Composite | Quartz Composite | Quartz Composite | Quartz Composite | Quartz Composite | Granite Composite Quartz stone |
| Exterior Dimensions | 30 1/2” L x 17” W x 9 1/4” D | 33" x 19" | 33" x 19" | 32 in. L x 19 in. W x 10 in. D | 30" x 19" | 24” L x 18 1/8” W x 8 5/8” D | 17" x 18-3/4" |
| Bowl Depth | 8 7/8” | 8.8" | 8.9" | 9 3/8" | 8.9" | 8 1/4” | 9-1/4" |
| Minimum Cabinet Size | 33” | 36" | 36" | 36" | 33" | 27” | not stated |
| Workstation Ledge | not stated | not stated | Track | Integrated ledge | Single-tier | not stated | not stated |
| Bowl Configuration | Single Bowl | Single Bowl | Single Bowl | Single Bowl | Single Bowl | Single Bowl | not stated |
| Width | 17.1 inches | 33 inches | 33 inches | 29 inches | 30 in. | 24 Inch | 17 inches |
| Target Space | Kitchen | Kitchen | Kitchen | Kitchen | Kitchen | Kitchen | RVs, Kitchen |
| Features | not stated | not stated | Workstation | not stated | Workstation | not stated | not stated |
| Color | Black | Black | Black | Black | Black | Black | Black |
| Size | 31 Inch, Single Bowl without Garbage Disposal | 33x19 Inch | 33"x19" | 32 Inch | 30"x19" | 24 Inch | 17" x 19" x 10" |
| Dimensions | 30.5 × 17.1 × 8.66 inches | 19 × 33 × 9.65 inches | 19 × 33 × 9.65 inches | 19 × 29 × 10 inches | 19 × 30 × 9 inches | 18.1 × 24 × 8.25 inches | 19 × 17 × 10 inches |
| Weight | 30.4 pounds | not stated | 45 pounds | 33.1 pounds | not stated | 22 pounds | 28.2 pounds |
| Model | KGU-413B | L-G01-t+ts 3.3 | FL-GRUSC33B-2 | KGUW2-33MBL | 30" granite composite kitchen sink | KGD-410B | 1719 |
For a related comparison, read intex 28457ep 4 person onyx black alternatives.
Frequently asked questions
Can I install a 33-inch sink in a 33-inch cabinet?
No, you need a 36-inch cabinet for a 33-inch sink. The Lordear 33-Inch Black Quartz Composite Undermount Sink requires standard 36-inch base cabinets for proper installation. A 33-inch cabinet is too narrow to accommodate this width. You must verify your cabinet interior dimensions before purchasing a larger sink to ensure it fits correctly.
What is the difference between a workstation sink and a standard bowl?
Workstation sinks include integrated tracks and ledges for accessories. Models like the Fulorni 33-Inch and Kichae 30-Inch feature these rails to hold cutting boards and colanders. This design creates a large prep workspace directly above the basin. Standard bowls lack these attachment points and offer only the open basin area for washing.
Is granite composite durable enough for daily use?
Yes, granite composite is highly durable and resistant to chips and scratches. All listed alternatives use this material for strength and heat resistance. The dense composition helps withstand heavy pots and high temperatures. It also resists staining, making it suitable for busy kitchens where you wash dishes and prepare food frequently.
Which sink is best for small kitchens?
The Kraus Quarza 24-Inch is the best choice for small spaces. It measures 24 inches long and 18.1 inches wide, fitting compact layouts. It offers a drop-in or undermount option for flexibility. The MONSINTA 17-Inch model is another compact choice, though it is better suited for secondary spaces like bars or laundry rooms.
Do workstation sinks come with accessories included?
Many workstation models include tracks and accessory kits. The Fulorni 33-Inch and Kichae 30-Inch sinks feature built-in rails for organizing tools. These accessories help maximize the prep space above the sink. You get a functional workspace without needing to purchase separate holders or racks, streamlining your kitchen workflow.
Can I use a drop-in sink in a small kitchen?
Yes, the Kraus Quarza 24-Inch supports both drop-in and undermount installations. A drop-in design is easier to install in existing countertops. It sits on top of the counter edge, which simplifies the process. This versatility makes it a practical option for small kitchens where installation ease and space efficiency are priorities.
How deep are the bowls in these alternatives?
Bowl depths range from 8.25 to 10 inches. The Kraus Quarza 24-Inch has an 8.25-inch depth, while the Lordear 33-Inch reaches 9.65 inches. The Kraus 32-Inch Workstation Sink offers a 10-inch depth for maximum capacity. Deeper bowls accommodate larger pots and pans, reducing the need to stack items during washing.