Before choosing a sink, check one important measurement: the 33-inch models below are generally designed for a 36-inch minimum cabinet, not a 33-inch cabinet. A sink’s advertised width is not the same as the cabinet width it needs. If your cabinet is truly 33 inches wide, none of these five meets its stated minimum; look for a model specifically approved for a 33-inch cabinet. If you have a 36-inch cabinet and want a sink about 33 inches wide, these options are worth comparing.
Quick Comparison
| Sink | Exterior Size | Gauge | Minimum Cabinet | Standout Feature |
|---|---|---|---|---|
| Sarlai 33-Inch Workstation Sink | 33 × 19 × 10 in. | 16 | 36 in. | Workstation ledges and included accessories |
| Kraus KHU640-33 Sink | 32.5 × 19 × 9 in. | 18 | 36 in. | Simple, low-maintenance design |
| IOROYO 33-Inch Sink | 33 × 19 × 9 in. | 16 | 36 in. | Rounded corners and included roll-up rack |
| VASOYO 33-Inch Workstation Sink | 33 × 19 × 10 in. | Not specified | 36 in. | Workstation accessories and 10-inch bowl |
| Ruvati RVH7433 Sink | 33 × 19 × 10 in. | 16 | 36 in. | Protective grid and decorative drain cover |
Dimensions and cabinet requirements are based on the supplied product specifications. Confirm the sink cutout, cabinet opening, and plumbing clearances before ordering.
Our Picks: Best Undermount Sink For 33 Inch Cabinet reviews
1. Sarlai 33-Inch Workstation Sink: Best for Extra Prep Space
The Sarlai is a 33-by-19-inch undermount sink with a 10-inch-deep bowl. Its T304 stainless steel is listed as 16 gauge, and the front and back ledges let compatible accessories sit across the sink. That setup can give you a place to prep or drain items without taking up as much counter space.
The package includes a cutting board, colander, roll-up rack, drain assembly, and bottom grid. The sink also has rounded corners, a sloped bottom, and an X-shaped drainage pattern. Sound-dampening pads and undercoating are intended to reduce noise and condensation. Its stated minimum cabinet size is 36 inches, so it is not a fit for a true 33-inch cabinet according to the supplied specifications.
This is a strong option if you have a 36-inch cabinet and want workstation features in a deep single bowl. The trade-off is that the accessories and ledges add parts to manage, and the sink requires more cabinet width than its 33-inch label might suggest.
Pros:
- 16-gauge T304 stainless steel construction
- Workstation ledges support included prep and drying accessories
- 10-inch bowl depth and sound-dampening features
- Includes a cutting board, colander, roll-up rack, and bottom grid
Cons:
- Requires a minimum 36-inch cabinet
- Workstation accessories need storage when not in use
Verdict: Choose the Sarlai if you have a 36-inch cabinet and will make regular use of its workstation accessories; skip it for a 33-inch cabinet.
2. Kraus KHU640-33: Best for a Straightforward, Easy-Care Setup
The Kraus KHU640-33 has exterior dimensions of 32.5 by 19 inches and a 9-inch overall depth. Its bowl measures 30.5 by 17 inches and 8⅝ inches deep. The slightly shorter exterior width may help when comparing cutout plans, but the listed minimum cabinet size is still 36 inches.
This model uses 18-gauge stainless steel and has a sloped bottom with channel grooves to help water drain. Rounded corners and a wear-resistant finish are intended to make routine cleaning simpler. The package includes a protective bottom grid, drain assembly with removable strainer, and mounting hardware. Unlike the workstation models, it does not list a cutting board or sliding accessories.
The Kraus is a practical choice if you want a conventional single-bowl sink rather than an accessory-heavy workstation. Its 18-gauge construction is a lighter gauge than the 16-gauge options here, so shoppers prioritizing the thicker listed steel may prefer Sarlai, IOROYO, or Ruvati.
Pros:
- Useful bowl size with a 9-inch overall depth
- Sloped bottom and channel grooves support drainage
- Includes a protective grid and drain assembly
- Undermount design allows countertop crumbs to be wiped into the sink
Cons:
- Requires a minimum 36-inch cabinet
- Uses 18-gauge steel rather than the 16-gauge steel listed for some alternatives
Verdict: Pick the Kraus if you want a simpler undermount sink with basic included hardware and do not need workstation accessories.
3. IOROYO 33-Inch Sink: Best for a 16-Gauge Sink with a Simple Profile
The IOROYO is a single-bowl sink measuring 33 by 19 by 9 inches, with a listed minimum cabinet size of 36 inches. It is made from 16-gauge T304 stainless steel and has a brushed finish. The design keeps the sink relatively straightforward, without the integrated workstation ledges found on the Sarlai and VASOYO.
Rounded R10 corners and an X-shaped drain line are designed to make cleaning and water flow easier. The package includes a roll-up rack, basket strainer assembly, bottom grid, and mounting clips. Its 9-inch height is shallower than the 10-inch bowls on several other picks, which may be worth considering if bowl depth is a priority.
The supplied listing data marks this item unavailable. If it becomes available, compare its cutout requirements and included installation parts with your project before deciding. As with the other 33-inch models here, its stated cabinet minimum rules it out for a 33-inch cabinet.
Pros:
- 16-gauge T304 stainless steel construction
- Rounded corners and X-shaped drainage pattern
- Includes a roll-up rack, bottom grid, and basket strainer assembly
- Simple single-bowl design without workstation ledges
Cons:
- Requires a minimum 36-inch cabinet
- Supplied listing data marks it unavailable
Verdict: Consider the IOROYO only if it is available and you want a conventional 16-gauge sink with useful included accessories; confirm the listing and fit first.
4. VASOYO 33-Inch Workstation Sink: Best for a Full Accessory Set
The VASOYO measures 33 by 19 by 10 inches on the outside, with an interior bowl listed as 31 by 17 by 10 inches. It has front and rear ledges for sliding accessories, including a cutting board, colander, and roll-up drying rack. The package also includes a bottom grid, strainer, mounting clips, and an installation guide.
The product description identifies the material as T304 stainless steel but does not state a gauge. It also lists a satin finish, rounded corners, sound-reduction padding, and an undercoating intended to help limit condensation. Sloped drainage and X-shaped grooves are designed to guide water toward the drain.
This model suits cooks who want to use the sink as an extra prep area and value a broad set of included accessories. Its 10-inch depth offers room for larger cookware, though you should check the available space below the sink for plumbing and storage. The stated minimum cabinet size is 36 inches, not 33.
Pros:
- Workstation ledges support several included accessories
- 10-inch-deep bowl with a listed 31-by-17-inch interior
- Includes a cutting board, colander, roll-up rack, and bottom grid
- Sound-reduction padding and drainage grooves are part of the design
Cons:
- Requires a minimum 36-inch cabinet
- Steel gauge is not specified in the supplied product details
Verdict: Choose the VASOYO if you want a deep workstation sink with many included accessories and have room for its stated 36-inch cabinet requirement.
5. Ruvati RVH7433: Best for a 16-Gauge Sink with a Decorative Drain Cover
The Ruvati RVH7433 is a 33-by-19-inch undermount sink with a 10-inch-deep bowl. Its interior measures 31 by 17 inches, and the listed minimum base cabinet size is 36 inches. The sink is made from 16-gauge T-304 stainless steel with a commercial-grade brushed finish.
Included items are a protective bottom grid, basket strainer drain assembly, decorative drain cover, cutout template, and mounting brackets. The drain opening is 3.5 inches and is described as compatible with a standard garbage disposal, but the disposal flange is not included. The supplied details also state that the sink is cUPC compliant and approved by IAPMO to meet US and Canadian plumbing standards.
Compared with the workstation options, the Ruvati focuses on the sink itself rather than sliding prep accessories. That may suit you if you prefer a simpler bowl and want the decorative drain cover. Make sure your disposal flange is on hand if you plan to connect a garbage disposal, and verify the countertop cutout and cabinet size before installation.
Pros:
- 16-gauge T-304 stainless steel construction
- 10-inch-deep bowl with a protective bottom grid
- Includes a cutout template, mounting brackets, and decorative drain cover
- Supplied specifications state cUPC compliance and IAPMO approval
Cons:
- Requires a minimum 36-inch cabinet
- Garbage disposal flange is not included
Verdict: Pick the Ruvati if you want a 16-gauge, 10-inch-deep sink with installation aids and a decorative drain cover, provided your cabinet is at least 36 inches.
How to Choose an Undermount Sink for Your Cabinet
Confirm the Cabinet’s Actual Width
Start by measuring the cabinet, not the old sink or countertop opening. The five sinks in this guide list a 36-inch minimum cabinet size, even though they are described as 33-inch sinks. If your cabinet is 33 inches wide, do not assume a smaller cutout will make one of these models fit. Choose a sink whose manufacturer specifically approves it for your cabinet size.
Compare Sink Dimensions with the Cutout
Check the sink’s exterior dimensions and the countertop cutout dimensions before ordering. Undermount sinks attach below the counter, so the opening and mounting arrangement need to match the sink and countertop. Use the supplied template when available, and confirm its measurements with your installer. A sink’s exterior width alone does not establish whether it will fit an existing opening.
Think About Bowl Depth and Space Below
A deeper bowl can offer more room for pots and pans, but it also occupies more space under the counter. The picks here range from 9 to 10 inches in overall sink depth, with bowl-depth details varying by model. Check for clearance around plumbing, a garbage disposal, and stored items below the sink before choosing a deeper option.
Choose the Steel Gauge That Fits Your Priorities
Some product details specify 16-gauge stainless steel, while the Kraus is listed as 18 gauge and the VASOYO description does not state a gauge. Gauge is one part of the construction comparison, but it is not a substitute for checking all the product details and installation requirements. If a particular gauge matters to you, verify it on the product listing before buying.
Decide Whether Workstation Accessories Are Useful
The Sarlai and VASOYO have ledges that support accessories across the sink, such as a cutting board or drying rack. This can create a convenient prep area, but it may not be useful if you prefer a clear, conventional bowl. Consider how often you would use the accessories and where you will keep them when they are not in place.
Check the Included Drain and Installation Parts
Included components differ. Some packages list mounting clips, a template, a drain assembly, or a bottom grid; the Ruvati’s supplied details specifically note that its garbage disposal flange is not included. Compare each package with your plumbing plan and ask your installer which parts you will still need. Also confirm the drain opening and disposal compatibility for your setup.
Consider Cleaning and Noise-Reduction Details
Rounded corners can be easier to reach while cleaning than sharper interior corners. Several models also list sound-dampening pads or undercoating, while drainage slopes or grooves are intended to help water move toward the drain. These design details may help with daily upkeep, but they do not replace regular cleaning or careful installation.
Frequently Asked Questions
Can a 33-inch sink fit in a 33-inch cabinet?
Not according to the specifications supplied for these five sinks. Each lists a minimum cabinet size of 36 inches. If your cabinet is truly 33 inches wide, look for a different sink that explicitly lists a 33-inch minimum cabinet requirement.
Why is a 33-inch sink listed for a 36-inch cabinet?
The sink’s name usually refers to its approximate exterior width, while the cabinet requirement describes the minimum cabinet size stated for installation. The product specifications here show that those measurements are not the same, so check both before ordering.
Which sink has workstation accessories?
The Sarlai and VASOYO have workstation ledges and include accessories such as a cutting board and roll-up rack. Compare the included parts carefully, since each package is different.
Which option has the deepest bowl?
The Sarlai, VASOYO, and Ruvati list a 10-inch depth. The Kraus is listed as 9 inches deep overall, with an 8⅝-inch bowl depth. Check the product’s installation details as well as its depth measurement before choosing.
Do these sinks include a garbage disposal flange?
The Ruvati listing says its included drain is for standard plumbing and that the garbage disposal flange is not included. The supplied descriptions for the other models do not establish that a disposal flange is included, so confirm this with the product listing if you plan to use a disposal.
Which sink is the simplest choice without workstation ledges?
The Kraus and Ruvati have conventional single-bowl designs without the workstation ledges described for the Sarlai and VASOYO. The Kraus includes a bottom grid and drain assembly, while the Ruvati includes a grid, drain assembly, decorative drain cover, and cutout template.
What should I verify before buying an undermount sink?
Confirm the cabinet width, sink dimensions, countertop cutout, mounting requirements, plumbing and disposal clearance, drain opening, and included installation parts. For these models, the first check is especially important: all list a 36-inch minimum cabinet.
Final Recommendation
If your cabinet is actually 33 inches wide, none of these five sinks is the right match based on its stated minimum cabinet size. Shop for a model specifically designed for a 33-inch cabinet instead. If you have a 36-inch cabinet, the Kraus is a straightforward choice with a bottom grid and drain assembly, while the Sarlai is a compelling workstation option with 16-gauge steel and several included accessories. Choose based on your measured cabinet and cutout—not the sink’s name alone.