Standard Double Bowl Kitchen Sink Size (Dimensions in Inches, cm & mm)
Quick Answer: What Is the Standard Double Bowl Sink Size?
The standard double bowl kitchen sink is 33 inches wide by 22 inches front-to-back (about 84 cm × 56 cm, or 840 mm × 560 mm). It fits a standard 36-inch base cabinet and works in most average kitchens.
- Standard width33″ · 84 cm · 840 mm
- Front-to-back22″ · 56 cm · 560 mm
- Bowl depth8–10 inches
- Min. base cabinet36 inches
- Common range27″ to 48″ wide
- Popular splits50/50 & 60/40
A double bowl kitchen sink stays a favorite in modern kitchens for its practicality and multitasking — wash on one side, rinse on the other. But when you’re remodeling or fitting out a new build, size is what makes or breaks the install. This guide breaks down every standard dimension, the exact cabinet you need, and how the numbers convert to centimeters and millimeters.
What Is the Standard Double Bowl Sink Size?
The most common standard size for a double bowl kitchen sink in 2026 remains 33 inches wide by 22 inches front-to-back. This footprint holds two equally sized or offset bowls and drops into the widely used 36-inch cabinet. Interior bowl depth usually runs 8 to 10 inches, though deeper 12-inch basins are increasingly popular in work-focused kitchens.
Double Bowl Sink Size Chart
Beyond the 33″ standard, double bowl sinks come in a predictable set of sizes. Here’s how the common widths compare and who each one suits:
| Size (W × D) | Category | Best For |
|---|---|---|
| 27″ × 18″ | Compact | Apartments & tiny kitchens |
| 30″ × 18″ | Small | 30–33″ cabinets, reduced-width bowls |
| 32″ × 21″ | Standard (narrow) | Slightly tighter counters |
| 33″ × 22″ | ★ Most Common | Average kitchens — the sweet spot |
| 36″ × 22″ | Large | Bigger kitchens & workstation sinks |
| 36″ × 20″ | Wide / shallow | Wide runs with limited depth |
| 38″ × 22″ | Extra-large | Larger installations |
| 42″–48″ | Oversized | Luxury & professional kitchens |
Double Sink Size in Inches, cm & mm
Working from a metric plan or a manufacturer’s spec sheet? Here’s the standard 33″ × 22″ sink converted into centimeters and millimeters:
| Measurement | Inches | Centimeters | Millimeters |
|---|---|---|---|
| Width | 33″ | ~84 cm | ~840 mm |
| Front-to-back (depth) | 22″ | ~56 cm | ~560 mm |
| Bowl depth | 8–10″ | ~20–25 cm | ~200–250 mm |
| Countertop cutout | 32¼″ × 21¼″ | ~82 × 54 cm | ~820 × 540 mm |
What Size Cabinet Do You Need for a Double Sink?
Your base cabinet has to be wide enough to carry the sink and leave room for mounting and plumbing. The rule of thumb: the cabinet should be at least 3 inches wider than the sink, with 2–3 inches of clearance on each side.
| Sink Width | Minimum Base Cabinet | Notes |
|---|---|---|
| 27″–30″ | 30″ | Compact / reduced-width double bowl |
| 33″ | 36″ | The sweet spot — fits most cabinets unmodified |
| 34″–35″ | 36″ | Fits, with tighter clearance |
| 36″–38″ | 39″–42″ | Larger sinks & workstation features |
Working with a 36-inch cabinet? You can comfortably size up to a 34–35 inch sink, or add workstation features like a cutting board or drying rack. Stuck with a 30-inch cabinet? A reduced-width double bowl (30″ × 18″ or a compact 27″ model) still works.
60/40 vs 50/50: Bowl Configurations Explained
Double bowl sinks split their width in one of two main ways — and it changes how you use the sink day to day.
50/50 — Equal Bowls
Both bowls are the same size. Ideal if you split sink use evenly — wash on one side, rinse on the other. In a 33″ sink, each bowl is roughly 14–16 inches wide.
60/40 (or 70/30) — Uneven Bowls
One larger bowl (about 60% of the width) and one smaller. Great when you want a big washing basin plus a compact side for prep or a disposal. Increasingly popular for its ergonomics.
Prefer a single deep basin on one side? A 1.5-bowl sink pairs one full-size bowl with a shallow half-bowl, while a triple bowl (often 40/20/40) adds a small central compartment for multitasking in larger kitchens.
What Is a Double Bowl Sink Used For?
The split design makes everyday kitchen work more efficient. You can:
- Wash and rinse separately — soapy water on one side, clean water on the other.
- Prep without contamination — rinse vegetables while dishes soak in the other bowl.
- Hide the mess — stash dirty dishes in one bowl while the other stays open.
- Add a disposal — run a garbage disposal in one bowl and keep the other fully usable.
Even in dishwasher-equipped homes, double sinks stay relevant — especially for people who cook often. In 2026 many double sinks double as workstation sinks with drying racks, cutting boards and colanders that slide along the rim.
Best Materials for Double Bowl Sinks
Stainless Steel
Still the most popular choice — durable, heat- and stain-resistant, and easy to clean. For double bowl sinks, choose 16- or 18-gauge steel to cut noise and add strength (16-gauge is the thicker, quieter option).
Enameled Cast Iron
A classic, high-end look with a porcelain-enamel coating. Extremely durable and chip-resistant, but heavy — it needs strong cabinet support. Ideal for traditional or farmhouse kitchens.
Fireclay & Granite / Quartz Composite
Fireclay is molded ceramic fired at high temperatures for a glossy, timeless finish. Granite and quartz composites blend stone with resin for a modern matte look with excellent scratch resistance. Both are stylish and hard-wearing, though heavier than steel.
Copper & Specialty Materials
Copper is a statement material with natural antimicrobial properties and a living patina — higher cost and maintenance, but a stunning centerpiece.
Top Double Bowl Sink Picks for 2026
Once you’ve settled on a size, here are three well-reviewed double bowl sinks that cover the most common needs — a stainless all-rounder, a value undermount built for big pots, and a composite pick for style.
Kraus Standart PRO 33-Inch (KHT302-33)
- Size: 33″ × 22″ × 10⅝” deep
- Material: 16-gauge stainless steel
- Bowls: Equal double bowl (each 15½” × 18″)
- Install: Drop-in or undermount
- Cabinet: 36″ minimum
A do-everything 33-inch stainless workhorse that fits the most common 36-inch cabinet. TRU16 gauge steel resists dents and noise, and the kit ships with two bottom grids and drain assemblies. Installs drop-in or undermount, so it suits almost any countertop.
Best for: the standard 33″ kitchen that wants one sink to handle everything.
Check Kraus Standart PRO Price on Amazon
Ruvati 32-Inch Low-Divide 50/50 Undermount (RVM4350)
- Size: 32¼” × 18⅞” × 8½” deep
- Material: 16-gauge T-304 stainless
- Bowls: 50/50, low 3″ center divide
- Install: Undermount
- Cabinet: 36″ recommended
The clever low divider sits 3 inches below the rim, so you get two bowls and the clearance to lay a big roasting pan flat across both. Highest-rated of the three, with a sound-dampened T-304 body, grids, clips and strainers included.
Best for: undermount installs and anyone who regularly washes large pots and pans.
Check Ruvati Low-Divide Price on Amazon
Elkay Quartz Classic 33″×22″ (ELG3322WH0)
- Size: 33″ × 22″ × 9½” deep
- Material: Quartz / granite composite (E-Granite)
- Bowls: Equal 50/50 double bowl
- Install: Drop-in
- Cabinet: 36″ minimum
Molded from 85% natural quartz, this composite bowl shrugs off scratches, stains and heat up to 535°F, and the white finish with subtle grey flecking brings warmth a steel sink can’t. A true 33″×22″ footprint drops straight into a standard cutout.
Best for: color-matched, low-noise kitchens that want a designer look.
Check Elkay Quartz Classic Price on AmazonEverything You Need to Install It
A sink is only part of the job. These are the low-cost extras most people add when fitting a double bowl sink — the grids and strainers that protect it, the putty and brackets that secure it, and the board that turns it into a workstation.
Serene Valley Sink Bottom Grid
Keeps pots off the basin floor so it never scratches. Measure your bowl bottom before buying.
Check Price on Amazon
Honmein Sink Strainers (2-Pack)
Double-layer stainless baskets catch food and stop clogs. Fits most standard 3.5″ drains.
Check Price on Amazon
TYESTAND Undermount Support Brackets
Adjustable stainless supports (fits 28–39″) that hold a heavy undermount sink securely to the cabinet.
Check Price on Amazon
Harvey’s Plumber’s Putty (14 oz)
Seals the drain and strainer so nothing leaks. Stays flexible and never cracks.
Check Price on Amazon
BAMOTTO Over-Sink Bamboo Cutting Board
Turns any double bowl into a workstation — slides over the rim for instant extra prep space.
Check Price on AmazonComplete the Setup
Two more decisions go hand-in-hand with a new double bowl sink — the faucet on top and the disposal underneath:
The best smart kitchen faucets to pair with your new sink.
Read the guide → Garbage DisposalHow to pick a disposal for one bowl of a double sink.
Dive deeper →Double Bowl Sink Sizing FAQ
What is the standard size for a double bowl kitchen sink?
The standard double bowl kitchen sink is 33 inches wide by 22 inches front-to-back, with bowls 8–10 inches deep. It fits a 36-inch base cabinet and suits most average-sized kitchens.
How wide is a double kitchen sink?
Most double kitchen sinks are 30 to 33 inches wide. Compact models start around 27 inches for small kitchens, while oversized styles reach 42–48 inches for luxury or professional kitchens.
What is the cutout size for a double sink?
A standard drop-in cutout is about 32¼″ × 21¼″. Always use the template supplied by your sink’s manufacturer before cutting the countertop.
What size cabinet do I need for a double bowl sink?
For a typical 33-inch sink you need at least a 36-inch base cabinet. As a rule, the cabinet should be about 3 inches wider than the sink to allow for mounting and plumbing clearance.
How deep is a standard double sink?
Most standard double sinks are 8 to 10 inches deep. Shallow models run about 7 inches; deeper work-focused basins reach 12 inches.
What is a 60/40 or 50/50 double bowl sink?
They describe the bowl split. 50/50 means two equal bowls; 60/40 means one bowl is larger (about 60% of the width) and one smaller. 70/30 and triple-bowl 40/20/40 layouts also exist.
What is the double sink size in cm and mm?
The standard 33″ × 22″ sink is roughly 84 cm × 56 cm, or 840 mm × 560 mm.
What are the bowl dimensions of a standard double sink?
In a 33-inch sink, each bowl is usually 14–16 inches wide and 16–18 inches front-to-back, with an 8–10 inch depth.
What is the difference between undermount and drop-in dimensions?
Undermount and drop-in double sinks share a similar 32–36 inch footprint. Drop-in sinks add a finished rim that sits on top of the counter; undermount sinks mount beneath it for a seamless look and need support brackets.
Are all double bowl sinks the same size?
No. While 33″ × 22″ is the standard, double bowl sinks range from about 27 inches to 48 inches wide depending on style and bowl configuration.
Should You Choose a Double Bowl Sink?
If you want a sink that supports multitasking and improves workflow, a double bowl sink is still an excellent choice in 2026 — from compact 27-inch options for small kitchens to 36-inch workstation models for serious home cooks. When choosing, weigh your cabinet size, daily habits, material and whether you want extras like prep space or a disposal. For most households, a 33″ stainless steel double bowl sink remains the best all-around pick.
