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What is a Porcelain Tub? 2024 Guide to Porcelain Tubs

There aren’t many bathroom furnishings that can compare to the classic beauty and elegance that a porcelain bathtub brings. Porcelain bathtubs have long been a sophisticated addition to homes, providing long-lasting beauty and durability. 

That is why many homeowners have been choosing porcelain tubs over other bathtub types for years. If you’re considering buying one, make sure you read this article first.

What is a Porcelain Tub?

A porcelain bathtub is a bathtub that is constructed from a base of iron, steel, glass or tile. This bathtub is then coated with a layer of porcelain enamel before the temperature is fired to protect the integrity of the enamel coating. The result is a bathtub that is very durable and easy to clean, with the finish having some resistance to common chemicals. The downside to porcelain bathtubs is that they tend to be heavier than fiberglass and acrylic bathtubs with their surfaces prone to rust or stress under heavy impacts. 

what is porcelain.

Common Sizes of Porcelain Tubs 

You can find porcelain bathtubs in a wide range of sizes. Here are the most common on the market today:

  • 32×60
  • 40×60
  • 55×27
  • 75×34
  • 45×30
  • 72×32

Porcelain Tub Pros and Cons

Like every material on the market, porcelain tubs carry a few positives and negatives:


There are many benefits of having a porcelain tub in your bathroom. If you’ve been checking porcelain tubs, you will be happy to hear that they come with many benefits. 


Compared to other materials on the market, porcelain tubs are very affordable. Coupled with their durability against chemicals, scratches, and moisture, they are an easy choice for the bathroom.

Chemical-resistant finish/easy to clean

Porcelain tubs are finished with a finish that is resistant to chemicals, allowing you to use a wide range of cleaning products for it. That being said, the finish will wear out over time, so be mindful of that.

Classic look

Porcelain bathtubs remain a timeless look for a reason. They blend beautifully with many bathroom styles and even after hundreds of years, they are still quite sought after.


Having in mind that porcelain tubs come with many benefits, one must be aware of its disadvantages as well. 

Limited design choices

Their classic look greatly limits their design options. Although you can alter aspects of a porcelain bathtub yourself, there are not many design or color options available.

Vulnerable to chipping and heavy impacts

The material is quite vulnerable to chipping and heavy impacts. These will damage the finish and expose the steel underneath, which can cause longterm damage to your tub if not sealed.


Porcelain bathtubs are usually fused or coated alongside steel or cast iron, making them quite heavy bathtubs. This will increase your installation costs and you’ll need to check if it requires additional support as well.

Porcelain Tub Types

Since porcelain bathtubs require an initial base, this tends to limit the number of shapes and sizes that are available compared to other materials on the market such as acrylic or fiberglass. That being said, porcelain bathtubs are available in all standard sizes such as Drop in, Freestanding, Alcove and Corner sizes.

Since porcelain bathtubs require an initial base, this tends to limit the number of shapes and sizes that are available compared to other materials on the market such as acrylic or fiberglass. That being said, porcelain bathtubs are available in all standard sizes such as Drop in, Freestanding, Alcove and Corner sizes.

Drop In porcelain tub

One of the more common bathtub types, these bathtubs are designed to be dropped into a carved out space. Available in undermount or top mount, the purpose of drop-in bathtub style is to make installation much easier while saving space, although their downside is that they usually require a wall or structure as an anchor point, meaning there are limitations where they can be placed.

Freestanding porcelain tub

Opposite drop in are freestanding bathtubs which as it’s name refers, are bathtubs that can stand on their own. These tend to be much larger and heavier than drop-in style, but can be installed anywhere in your bathroom.

Alcove porcelain tub

A style of drop-in bathtub, alcove bathtubs refer to the method of installation. Alcoves are usually kept in enclosures of at least three walls or “alcoves”, giving you more space for other amenities in your bathroom. 

Corner porcelain tub

Another type of alcove bathtub is the corner bathtub, which is meant to fit snugly in a corner. As with alcove bathtubs, corner bathtubs are installed with a drop-in style and usually require a walls to flank their sides as support. The benefit of this installation method is to save space while still providing a bathtub with a great deal of water depth and bathing space.

What other common material types are confused with porcelain?

Although porcelain is usually quite distinct on it’s own, it is often confused with a few materials on the market, namely Enamel and Acrylic. Enamel is quite understandable as Porcelain itself is an enamel coating, so the two have similar appearances. The primary difference is that Enamel covers steel or iron bathtub, meaning that the bathtub is magnetic while porcelain is not.

porcelain bathtub examples.

Acrylic is similar as both porcelain bathtubs and acrylic bathtubs have a similar white gloss, but as stated previously, porcelain is constructed of a porcelain coating whereas acrylic is formed by vacuum acrylic sheets reinforced with fiberglass. So, while these three bathtubs may appear the same, their material requires a different degree of care. 

How can you tell if your tub is made of porcelain or enamel?

Both Porcelain bathtubs and enamel bathtubs are coated with a layer of enamel. Both of these bathtubs tend to have a glossy white appearance and they tend to have similar weights, so it is actually quite difficult to tell the two apart initially. The easiest way to tell is to test a magnet on your bathtub. If it attracts, you most likely have an enamel bathtub as enamel bathtubs cover steel and iron bathtubs whereas porcelain covers a larger range of materials. 

porcelain or enamel

Porcelain vs Acrylic Materials

Although similar in appearance, porcelain and acrylic are two different materials and as such, have different positives and negatives when compared to each other. First is heat retention, with acrylic materials able to retain heat much better than porcelain. Porcelain bathtubs counteract this with some models being foam insulated, but acrylic bathtubs still retain heat better.

Next is durability, with porcelain being a much more durable bathtub that has a higher resistance to scratching. That being said, porcelain is a harder material, making it more vulnerable to hard impacts whereas acrylic tends to be softer, making it weaker overall, but easier to clean and polish the finish. Finally, with maintenance, acrylic tends to be easier as the material is softer, allowing it to withstand punishments from chemicals, although nonabrasive cleaners are recommended for both overall. 

What is the average cost of a porcelain tub?

Small-sized porcelain tub$350 – $700
Medium-sized porcelain tub$700 – $1,200
Large-sized porcelain tub$1,300 – $2,000

Not including installation, the average cost of a porcelain bathtub can run from $350-2,000. For a small sized bathtub, you are looking at price range between $350-700. For a medium or average sized bathtub, the price jumps to $700-1,200 depending on the features and available style of the tub. Finally, the largest bathtubs will fluctuate from $1300-2000, but usually won’t be that much higher than that as porcelain tends to be a more affordable bathtub material. 

average cost porcelain tub.

What is the average weight of a porcelain Tub?

Small porcelain bathtubs or those measuring around 45-55 inches long will tend to have a water capacity of 32 gallons and weigh about 250 pounds. Medium sized bathtubs, or those around 60 inches long will weigh around 320 pounds. Finally, large sized bathtubs or freestanding porcelain bathtubs will weigh anywhere between 370 pounds and 500 pounds. 

Porcelain Tub Maintenance 

In general, bathtub maintenance is similar regardless of the material: use non-abrasive cleaners, ensure it is dry after deep cleaning, avoid heavy impacts, and ensure you wash your tub on a regular basis. Here is what you will need to take care of your porcelain tub properly and ensure a deep clean:

  • Warm water
  • A bucket
  • ¼ cup ammonia
  • ¼ cup baking soda
  • A cloth or non-abrasive nylon sponge for scrubbing
  • For tough stains: Salt and the juice of half a lemon

porcelain maintenance.

How to take care of stains in your porcelain bathtub?

For most stains, warm water and either a soap solution or baking soda will do the trick. Avoid abrasive cleaners as they can damage the finish on your bathtub. Also, avoid using a steel wool to clean for the exact reason. For tougher stains, hydrogen peroxide and lemon juice should solve your problems. 

How to Deep-Clean the Tub 

Fill a bucket with warm water and add ammonia and baking soda to the liquid. Soak a cloth or sponge in the mixture and scrub the tub, focusing on stained areas. Scrub and repeat until the tub is clean, then rinse it well with warm water and use a rag to wipe the tub dry. Always ensure that your bathtub is dry after a deep clean.

What to Do About Tough Stains

For tough stains, cover with salt and lemon juice. Baking soda and hydrogen peroxide are also good choices. If the stain still persists, leave for an hour and try again. Avoid abrasive cleaners as they can damage the finish on your bathtub. Also, avoid using a steel wool to clean for the exact reason. For tougher stains, hydrogen peroxide and lemon juice should solve your problems.

Materials to Avoid

When it comes to porcelain enamel, abrasive cleaners, and materials can ding or chip the surface, making it even worse through the cleaning process. To avoid increased damage, here are a few materials to avoid:

  • Scouring powder
  • White vinegar
  • Steel wool

How do you take care of scratched porcelain bathtubs?

For scratches, you will need a repair kit, usually sold at your local home improvement store. The repair kit will provide a solution, which will not provide an exact match to your porcelain, but is still close enough. You will need to clean and sand the area before applying the filler and solution to your bathtub. Follow the directions on the repair kit, allowing the glaze to dry completely before reapplying a new layer. The result will be a polished bathtub without any visible scratches. 

How to take care of rust?

Rust is a general byproduct of cleaning materials that have been used on your bathtub over the years. To properly remove them from your bathtub, you need to be mindful of which products you use on your bathtub and whether they may or may not produce harmful effects.

Generally, harsh cleaners are not recommended, instead use either lemon with warm water to remove rust stains or purchase a rust cleaner from your home improvement store. Make sure no cracks are visible and seal any openings before thoroughly cleaning the rust stains from your bathtub. 

porcelain example

How to know if a porcelain tub is right for you?

Porcelain bathtubs provide a classic mainstay in any bathroom. They tend to be quite sturdy and able to deal with a heavy amount of use without losing their shine. Porcelain bathtubs also are quite affordable as well, but that being said, they are not for everyone. They have poor heat retention compared to most other materials on the market, and their available colors and styles are fairly limited. So, if you are looking to purchase a porcelain bathtub, consider the flexibility of your bathroom space and if the style suits you before buying. 

Porcelain will always remain a classic bathtub material, with its time tested durability and vintage white aesthetic, it will always remain a classic. And although it’s style and colors are somewhat limited, no one can deny the value this material brings to any bathroom. 

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Iris Webb
Iris Webb
4 years ago

I have water stains in
My pot… tub . How do ai remove them help

Stone Resin bathtubs starting at $2,940

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