When you’re designing or renovating a compact kitchen, choosing the smallest kitchen sink size that still meets your needs is essential.
The smallest standard kitchen sink typically starts at 15 to 25 inches wide, with a depth of 6 to 8 inches.
These sinks are ideal for tiny kitchens, studio apartments, RVs, or as a secondary prep sink in a larger space.
Modern compact sinks don’t sacrifice functionality.
They come in a variety of shapes, materials, and mounting styles, allowing you to save space without compromising on utility.
Ideal Dimensions for Tiny Kitchens
If you’re working with a kitchen under 100 square feet, go for a sink that is:
- Width: 15 to 25 inches
- Depth: At least 7 inches to avoid splash and clutter
- Front-to-back (length): 15 to 18 inches
These dimensions offer just enough space for basic tasks like washing produce or cleaning a few dishes.
How to Choose Based on Cabinet Size and Kitchen Layout?
Before buying, always measure your base cabinet size. For example:
- A 24-inch cabinet usually supports a 22-inch sink.
- A 30-inch cabinet allows for more flexibility, fitting sinks up to 27 inches wide.
Also, consider your countertop depth and clearance around walls or backsplashes.
In U-shaped or galley kitchens, corner sinks or single-bowl models can help maximize usable space.
Types of Small Kitchen Sinks
Choosing the right type of small kitchen sink depends on your cooking habits, available space, and style preferences. Below are the most popular configurations.
What is a Bar Sink?
Also known as a prep sink, a bar sink is the smallest kitchen sink size available.
Typically measuring 9 to 18 inches wide, it’s designed for quick tasks like rinsing fruit, filling glasses, or prepping garnishes.
Bar sinks are ideal for:
- Wet bars or coffee stations
- Secondary sinks in a kitchen island
- Very small kitchenettes or RVs
Prep Sink vs. Main Sink: Key Differences
| Feature | Prep Sink (Bar Sink) | Main Kitchen Sink |
|---|---|---|
| Size Range | 9–18 inches wide | 24–36 inches wide |
| Use Case | Light prep, rinsing | Washing dishes, heavy tasks |
| Placement | Secondary area | Primary kitchen location |
If you’re tight on space, a bar sink can double as your main sink—but only if your cleaning and cooking needs are minimal.
Corner, Round, and Rectangular Options
- Corner Sinks: Installed at a 90° junction, perfect for U- or L-shaped kitchens.
- Round Sinks: Space-saving and stylish, usually around 15–18 inches in diameter.
- Rectangular Sinks: Most versatile and common for both undermount and drop-in installations.
Each shape offers benefits based on kitchen layout, so choose one that fits your daily routine and design goals.
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Best Materials for Compact Kitchen Sinks
The material you choose directly affects the sink’s durability, look, and maintenance. Here are the top choices for small kitchen sinks:
Stainless Steel
- Most popular material for the smallest kitchen sink size
- Lightweight, durable, and resistant to rust and staining
- Affordable and complements most modern appliances
- Works well with granite or stone countertops
Stainless steel is a go-to for anyone seeking a sleek look and low-maintenance option.
Copper
- Naturally antimicrobial—kills 99.9% of bacteria
- Warm, rustic aesthetic with unique patina over time
- Pricier and requires regular maintenance to preserve color
Copper bar sinks are often used as stylish focal points in compact spaces.
Enamel-Coated Cast Iron
- Heavy and extremely durable
- Vibrant color options to match kitchen decor
- Requires more care to avoid chipping or scratching
Ideal for vintage-inspired or farmhouse kitchens that use compact fixtures.
Stone and Composite Materials
- Includes granite, quartz, and marble composites
- Resistant to heat, stains, and scratches
- Heavy and typically more expensive
Stone sinks offer high-end appeal and long lifespan—great for permanent installations where space is limited but style matters.ur kitchen, better obtain the measurement as it will enable you to fit perfectly in the available space.
Top Small Kitchen Sink Recommendations (Updated for 2025)
Choosing the right sink when space is limited can be a challenge.
We’ve rounded up three highly rated compact sinks that deliver excellent performance without sacrificing style.
Whether you’re outfitting a studio apartment or upgrading a prep area, these sinks offer great options for the smallest kitchen sink size needs.
Houzer STS-1300-1 Eston Series Undermount Stainless Steel Sink
Features:
- Dimensions: 23″ x 17.75″
- Bowl Size: 21″ x 15.75″ x 9″
- Material: 18-gauge stainless steel
- Undermount installation with sound-absorbing pads
Price: $121
Pros:
- Sleek, modern look
- Easy to clean and maintain
- Cost-effective and durable
Cons:
- May scratch if abrasive cleaners are used
- No faucet holes, so may require separate counter drilling
Best For: Minimalist kitchens and compact undermount installations.
Houzer 2522-8BS3-1 Glowtone Topmount Stainless Steel Sink
Features:
- Dimensions: 25″ x 22″
- Bowl Size: 21″ x 15.75″ x 8″
- Material: Alloy stainless steel
- 3-hole topmount installation
Price: $105
Pros:
- Simple to install with standard countertop cutouts
- Chrome finish offers a clean, neutral look
- Budget-friendly option
Cons:
- Lower build sturdiness
- May develop minor dents over time
Best For: Budget-conscious buyers and basic renovations.
Houzer A1722-7BS-1 ADA Glowtone Topmount Stainless Steel Sink
Features:
- Dimensions: 17″ x 22″
- Bowl Size: 14″ x 15.75″ x 6.5″
- Material: Brushed stainless steel
- Designed to meet ADA guidelines
Price: $89
Pros:
- Ideal for very tight spaces
- Lightweight and easy to install
- Great price for functionality
Cons:
- Shallow depth may cause splashing
- Less suited for heavy dish loads
Best For: Micro-kitchens, RVs, and mobile homes.
Comparison Table of Small Sinks
| Sink Model | Dimensions (inches) | Depth (inches) | Installation Type |
|---|---|---|---|
| Houzer STS-1300-1 Eston Series – Undermount | 23 x 17.75 | 9 | Undermount |
| Houzer 2522-8BS3-1 Glowtone -Topmount | 25 x 22 | 8 | Topmount |
| Houzer A1722-7BS-1 ADA Glowtone – Topmount | 17 x 22 | 6.5 | Topmount |
Smallest Kitchen Sink Size : FAQs
The smallest kitchen sink size typically starts at 9 inches wide for bar sinks and 15–17 inches wide for compact main sinks. These are designed for tight spaces such as wet bars, RVs, and micro-apartments. If space is extremely limited, a single-bowl round or corner sink can save both counter and cabinet real estate.
A functional small sink should be at least 7 inches deep. Anything less may lead to:
Water splashing during dishwashing
Stacked dishes blocking the faucet
Difficulty rinsing large items
For best results, aim for 7–9 inches in depth, even in small formats.
Yes, but it depends on a few factors:
Cabinet height: Ensure there’s enough room for plumbing beneath.
Your height: Deep sinks (9–10 inches) may cause back strain for shorter users.
Faucet style: Pair with a tall-neck faucet to improve usability.
If you’re short on width but need capacity, a deep but narrow sink can be a great compromise.
Drop-in sinks are no longer as trendy as undermount models, but they still have value in small kitchens:
Advantages:
Easier and cheaper to install
Ideal for laminate countertops
Available in many compact sizes
Drawbacks:
The rim can trap grime and crumbs
Not as seamless or modern-looking as undermounts
If budget and ease of installation are priorities, a compact drop-in sink remains a practical choice.
The Bottom Line
When space is tight, choosing the right sink can make all the difference in functionality and flow.
The smallest kitchen sink size doesn’t mean sacrificing quality—you just need to select the right dimensions, materials, and design for your layout.
Among all options, the Houzer STS-1300-1 Eston Series Undermount Sink stands out as the top pick for 2025.
It offers the perfect balance of durability, modern aesthetics, and compact dimensions—making it ideal for small kitchens without compromising on performance.
Before you buy, be sure to measure your available space carefully and consider both cabinet size and personal comfort.
A well-chosen small sink can elevate even the tiniest kitchen.
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