The Battle of the Tubs Acrylic vs. Cast Iron

The Battle of the Tubs: Acrylic vs. Cast Iron


When it comes to choosing a bathtub for your bathroom, the options can seem overwhelming. Among the many decisions you’ll have to make, one of the most fundamental is the material of the tub itself. Acrylic and cast iron are two popular choices, each with its own set of advantages and disadvantages. In this article, we’ll dive deep into the Battle of the Tubs: Acrylic vs. Cast Iron, comparing these two materials in various aspects to help you make an informed decision for your bathroom renovation or new construction project.

Acrylic Bathtubs

Acrylic bathtubs have gained popularity over the years for several reasons. They are constructed from sheets of acrylic material that are reinforced with fiberglass for added strength and durability. Here are some key characteristics of acrylic bathtubs:

Lightweight and Easy to Install

One of the standout features of acrylic bathtubs is their lightweight construction. Compared to cast iron, acrylic tubs are much easier to handle and install. This makes them a preferred choice for DIY enthusiasts or those looking to save on installation costs. Additionally, their light weight puts less stress on your bathroom floor, which can be an important consideration for older homes.

Wide Variety of Styles

Acrylic bathtubs come in a wide range of shapes, sizes, and designs. Whether you prefer a modern, sleek look or a more classic and traditional style, you can find an acrylic tub to match your bathroom’s aesthetic. The material’s versatility allows for various shapes and configurations, including freestanding, alcove, corner, and drop-in tubs.

Comfortable to the Touch

Acrylic has a smooth and warm surface, which can be more comfortable to the touch compared to the cold surface of cast iron tubs. This comfort factor can make your bathing experience more enjoyable, especially during the colder months.

Excellent Heat Retention

Acrylic bathtubs are known for their ability to retain heat. This means that once you fill your tub with warm water, it will stay warm for a more extended period compared to some other materials. This can contribute to a more relaxing and enjoyable bath.

Low Maintenance

Acrylic tubs are relatively low maintenance. They are non-porous, making them resistant to stains and easy to clean. Regular cleaning with mild soap and water is usually sufficient to keep them looking pristine. However, it’s essential to avoid abrasive cleaners that could damage the acrylic surface.


Acrylic bathtubs are generally more budget-friendly compared to their cast iron counterparts. If you’re working within a limited budget, acrylic may be a more cost-effective option.

Cast Iron Bathtubs

Cast iron bathtubs have a long history dating back to the late 19th century. These tubs are made by casting molten iron into the desired shape, and they are known for their durability and classic appearance. Let’s explore the characteristics of cast iron bathtubs:

Unparalleled Durability

Cast iron bathtubs are exceptionally durable and can last for decades, if not a century or more. They are highly resistant to chipping, scratching, and denting, making them an ideal choice for high-traffic bathrooms or households with children.

Excellent Heat Retention

Similar to acrylic bathtubs, cast iron tubs are excellent at retaining heat. Once filled with hot water, they stay warm for a long time, providing a luxurious and relaxing bathing experience.

Timeless Aesthetic Appeal

Cast iron tubs exude a timeless and elegant aesthetic that can enhance the overall look of your bathroom. Their classic clawfoot design or clean lines can fit well in both traditional and contemporary bathroom styles. The porcelain enamel finish adds to their charm and makes them easy to clean.

Weight and Stability

While the weight of cast iron tubs can be a drawback during installation, it can also be seen as an advantage. The weight provides stability and prevents the tub from flexing or moving, resulting in a more solid and robust feeling when you’re in the bath. However, it’s essential to ensure that your bathroom floor can support the weight of a cast iron tub.


The dense nature of cast iron helps in soundproofing, reducing noise from water splashing or running in the tub. This can be particularly beneficial if your bathroom is located near bedrooms or other quiet areas of the house.


Cast iron bathtubs are known for their longevity. With proper care and maintenance, they can last for generations, making them a valuable investment in your home.


Now that we’ve explored the characteristics of both acrylic and cast iron bathtubs, let’s compare them in various aspects to help you decide which one is right for your bathroom:

Weight and Installation

Acrylic tubs are significantly lighter than cast iron tubs, making them easier to transport, maneuver, and install. This makes acrylic a more practical choice if you’re planning a DIY installation or if your bathroom floor has weight limitations. On the other hand, cast iron tubs are heavier, which can be a disadvantage during installation but provides stability and a more substantial feel once in place.


Cast iron bathtubs are renowned for their durability and longevity. They are highly resistant to chipping, scratching, and denting, making them an excellent choice for households with children or heavy bathroom use. Acrylic tubs are less durable in comparison and may be more prone to scratches and damage.

Aesthetic Appeal

The choice between acrylic and cast iron in terms of aesthetics largely depends on your personal preference and the style of your bathroom. Acrylic tubs offer a wide variety of styles, shapes, and designs, catering to modern and contemporary tastes. Cast iron tubs, with their timeless and classic appearance, are well-suited for traditional and vintage-themed bathrooms.

Heat Retention

Both acrylic and cast iron bathtubs excel in heat retention, ensuring a warm and enjoyable bathing experience. However, the edge might go to cast iron tubs for their ability to maintain heat slightly longer.


Acrylic bathtubs are generally easier to clean due to their non-porous surface. They are resistant to stains and can be cleaned with mild soap and water. Cast iron tubs, while durable, may require more care to maintain their porcelain enamel finish, as harsh or abrasive cleaners can damage it over time.


Acrylic bathtubs are generally more budget-friendly compared to cast iron tubs. If you’re working within a tight budget, acrylic may be the more affordable option.


Cast iron bathtubs are known for their exceptional longevity and can last for generations with proper care. Acrylic tubs, while durable, may not have the same lifespan as cast iron.


The Battle of the Tubs: Acrylic vs. Cast Iron presents you with two distinct choices for your bathroom renovation or construction project. Acrylic bathtubs offer lightweight construction, a wide variety of styles, and budget-friendly options. They are comfortable to the touch and require minimal maintenance. On the other hand, cast iron bathtubs provide unmatched durability, excellent heat retention, and timeless aesthetic appeal. They are a long-term investment that can last for generations.

Your choice between acrylic and cast iron tubs should be based on your specific needs, preferences, and budget. Consider factors such as the style of your bathroom, the level of maintenance you’re willing to undertake, and your willingness to invest in a long-lasting fixture. Ultimately, both acrylic and cast iron bathtubs have their merits, and the right choice will depend on what suits your individual circumstances and vision for your bathroom.