As a supplier of SUS304 sinks, I often get asked about the water capacity of these sinks. Understanding the water capacity is crucial for both homeowners and professionals, as it directly impacts the functionality and usability of the sink. In this blog post, I'll delve into the factors that determine the water capacity of a SUS304 sink, how to calculate it, and why it matters in different settings.
What is SUS304?
Before we dive into the water capacity, let's briefly talk about SUS304. SUS304 is a type of stainless - steel grade commonly used in sink manufacturing. It is known for its excellent corrosion resistance, durability, and aesthetic appeal. These properties make SUS304 sinks a popular choice for kitchens, bathrooms, and other applications where water is present.

Factors Affecting the Water Capacity of a SUS304 Sink
The water capacity of a SUS304 sink is determined by several factors:
- Sink Dimensions: The length, width, and depth of the sink are the most obvious factors. A larger sink with greater dimensions will generally have a higher water capacity. For example, a Single Bowl Sink that is long and deep can hold more water than a smaller, shallower one.
- Sink Shape: The shape of the sink also plays a role. Sinks with a rectangular or square shape may have a more straightforward capacity calculation compared to those with curved or irregular shapes. For instance, a Single Bowl Workstation Sink may have compartments or unique contours that can affect how much water it can hold.
- Rim and Overflow Design: The design of the sink's rim and overflow can influence the effective water - holding capacity. If the rim is very wide, it may reduce the actual area available for water storage. Similarly, the size and location of the overflow can limit the maximum water level in the sink.
Calculating the Water Capacity
Calculating the water capacity of a SUS304 sink is relatively straightforward if the sink has a regular shape. For a rectangular or square sink, you can use the following formula:
[V = L\times W\times D]
where (V) is the volume (water capacity), (L) is the length, (W) is the width, and (D) is the depth of the sink. The measurements should be in the same unit (e.g., inches or centimeters), and the resulting volume will be in cubic units (e.g., cubic inches or cubic centimeters).
For example, if you have a rectangular sink with a length of 24 inches, a width of 18 inches, and a depth of 10 inches, the water capacity is:
[V=24\times18\times10 = 4320] cubic inches.
To convert cubic inches to gallons, divide the volume in cubic inches by 231 (since 1 gallon is approximately equal to 231 cubic inches). So, (4320\div231\approx18.7) gallons.
If the sink has an irregular shape, you can use a more approximate method. One way is to fill the sink with water using a container of known volume (e.g., a one - gallon jug) and count how many containers it takes to fill the sink.
Importance of Water Capacity in Different Settings
- Kitchen Applications: In the kitchen, a sink with a sufficient water capacity is essential for tasks such as washing large pots and pans. A Small Radius Large Bowl Press Sink can hold enough water to soak dirty dishes, making the cleaning process more efficient. Homeowners who do a lot of cooking and entertaining may prefer sinks with a higher water capacity.
- Bathroom Applications: In the bathroom, the water capacity may not need to be as large as in the kitchen. However, a sink with an appropriate capacity is still important for activities like filling a basin for washing hands or face. A sink with too little capacity may lead to water splashing out during use.
- Commercial Settings: In commercial kitchens or laundries, sinks with high water capacity are a necessity. They need to handle large volumes of water for continuous washing and cleaning operations.
Comparing Different Sink Models
When choosing a SUS304 sink, it's important to compare the water capacities of different models. Our Single Bowl Sink comes in various sizes, allowing you to select one that meets your specific needs. The Single Bowl Workstation Sink offers a unique combination of functionality and water - holding capacity, with compartments for different tasks. And the Small Radius Large Bowl Press Sink is designed to maximize the available space for water storage.
Conclusion
The water capacity of a SUS304 sink is an important consideration when making a purchase. It is affected by factors such as dimensions, shape, and design features. By understanding how to calculate the water capacity and its importance in different settings, you can make an informed decision when choosing a sink.
If you are interested in our SUS304 sinks and want to discuss the water capacity and other features further, feel free to reach out to us. We are here to help you find the perfect sink for your needs.
References
- ASME A112.19.1/CSA B45.1 - 2018, “Plumbing Fixtures”
- Stainless Steel Information Center, “Properties of SUS304 Stainless Steel”



