Understanding Copper Gauge in Bathtubs: What You Need to Know

Understanding Copper Gauge in Bathtubs: What You Need to Know

When choosing a copper bathtub, one crucial aspect to consider is the gauge of the copper. Understanding what "gauge" means and its impact on the quality and durability of your bathtub is essential for making an informed decision. In this blog, we'll explore the concept of copper gauge, its importance, and how to choose the right gauge for your copper bathtub.

What is Copper Gauge?

Gauge refers to the thickness of the copper used in the construction of the bathtub. It is a standard measure for metal sheets, where a lower gauge number indicates thicker copper. For example, a 14-gauge copper sheet is thicker and more robust than a 16-gauge copper sheet.

Why Gauge Matters in Copper Bathtubs

  1. Durability: Thicker copper means a more robust and durable bathtub. A lower gauge copper tub resists dents and damage better, ensuring it retains its aesthetic appeal for many years. It also withstands daily wear and tear more effectively, making it a worthwhile long-term investment.

  2. Heat Retention: Copper's excellent heat retention properties are enhanced in thicker bathtubs. A lower gauge copper tub holds heat longer, providing a more comfortable and enjoyable bathing experience, especially beneficial for those who enjoy long soaks.

  3. Weight and Installation: While thicker copper enhances durability, it also increases the bathtub's weight. This consideration is important during installation. A heavier tub might require additional structural support in your bathroom, potentially impacting installation costs and complexity.

  4. Cost: Typically, the thicker the copper (lower gauge), the more expensive the bathtub. Higher material costs and increased craftsmanship for thicker copper sheets contribute to this. However, the investment often pays off in durability and longevity.

Common Gauges for Copper Bathtubs

Copper bathtubs usually range from 14 to 20 gauge. Here’s a breakdown of what to expect from each:

  • 14 Gauge (0.0641 inches): Among the thickest available for copper bathtubs, 14-gauge offers superior durability, excellent heat retention, and a luxurious feel. These bathtubs are less likely to dent or bend, maintaining their beauty for many years.

  • 16 Gauge (0.0508 inches): A common choice for copper bathtubs, 16-gauge provides a good balance between durability and affordability. It still offers excellent heat retention and durability but is slightly lighter and more cost-effective than 14-gauge.

  • 18 Gauge (0.0403 inches): Lighter and more affordable, 18-gauge copper bathtubs offer decent durability and heat retention but may be more susceptible to dents and damage over time compared to thicker gauges.

  • 20 Gauge (0.0319 inches): The thinnest gauge typically used, 20-gauge copper bathtubs are more affordable but less durable. They may not retain heat as well and are more prone to damage, making them less ideal for frequent use.

Choosing the Right Gauge for Your Copper Bathtub

To determine the right gauge for your copper bathtub, consider these factors:

  • Usage: Frequent use calls for a lower gauge (thicker copper) to ensure better durability and heat retention.

  • Budget: Balance your budget against the benefits of thicker copper. While lower gauge bathtubs are pricier, their longevity and durability can offer better value over time.

  • Aesthetic Preference: Thicker copper often has a more substantial and luxurious appearance. Consider the visual impact you want your bathtub to have in your bathroom.

  • Installation Requirements: Be mindful of the weight and installation requirements of thicker copper bathtubs. Ensure your bathroom structure can support the additional weight and plan for any extra installation costs.


The gauge of the copper in your bathtub is a key factor influencing its durability, heat retention, weight, and cost. By understanding the significance of gauge and considering your specific needs and preferences, you can select the perfect copper bathtub for your home. Whether you opt for a robust 14-gauge tub or a lighter 20-gauge option, a well-chosen copper bathtub can be a stunning and functional centerpiece in your bathroom for years to come.

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Tags: Bathtubs, Copper Bathtub, Copper water bottles, Luxury Bathtubs, Premium Bathtubs

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