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How much does a cast iron bath weigh - approximate weight for different sizes

Cast iron bathtub is a classic piece of sanitary ware. In Soviet times, these durable and affordable hot tubs were in almost every home. Today, acrylic and steel bathtubs are gaining more and more popularity, but cast iron products remain in demand. One of the aspects to consider when buying such a plumbing item is its mass, which can be significant. Finding out in advance how much a cast-iron bathtub weighs is important both for ensuring its comfortable transportation and for observing safety rules during installation.

The main parameters that affect the weight of the cast iron bath:

  • length;
  • width;
  • depth;
  • Wall thickness;
  • density of the metal.

Typical bath sizes:

  • length - from 120 to 200 cm in 10 cm increments;
  • width - from 70 to 85 cm in 5 cm increments;
  • depth - 35-60 cm.

It should be noted that earlier products were produced with thicker walls and high metal density. Modern technologies make it possible to produce hot tubs with a smaller casting thickness, but their consumer properties are not lost. When figuring out the weight of the bathtub, you need to take into account the year of manufacture. For example, in search of an answer to the question of how much a 150x70 cast-iron bathtub, made during the Soviet Union, weighs, you can find information that the weight of the product is 105-110 kg. A new hot tub with the same dimensions weighs less.

Consider how much a cast-iron bath 170x70 will weigh, as well as products with the same width and a different length:

  • 150x70 - 80-90 kg;
  • 160x70 - 85-95 kg;
  • 170x70 - 95-110 kg;
  • 180x70 - 115-135 kg.

Cast iron bath weight with other parameters:

Weight, kg
Length / width, cm 75 80 85
150 90-100 100-110 110-120
160 95-105 105-115 115-125
170 110-125 125-140 135-145
180 130-150 145-165 160-180

The given standard sizes of a cast-iron bath are typical for domestic goods. Imported plumbing items, as well as products with unusual outlines, may have a different weight. It must be indicated in the data sheet. Foreign baths are generally lighter and shallower.

Note: The weight of the cast iron bath is especially important if the housing is located in an apartment building without a freight elevator. In order to deliver a heavy, large-sized font up the stairs, it will be necessary to use at least four loaders, while they will have to unfold and lift it over the railing.

Advantages and disadvantages of a cast iron bath

Cast iron baths are characterized by many advantages, including:

  1. Durability. The hot tub can last more than 25 years, provided it is properly used and properly maintained, as the alloy is very resistant to deformation and damage.
  2. Sound absorption. Thick cast iron walls absorb the sound of pouring water and vibration.
  3. Stability. Considering how much a standard cast-iron bathtub weighs, it is understandable that it is not easy to accidentally turn it over or move it. It can withstand people weighing over 100 kg. There is no need to install a special podium to prevent the bottom from bending, as well as to use additional fasteners.
  4. Heat retention. Cast iron maintains a high water temperature for a long time. The liquid in the bath remains warm enough for 30-40 minutes.
  5. Ease of care. The surface of the bathtub is covered with a thin layer of enamel, which repels dirt. The tub is easy to clean. Almost any detergent is suitable for this. The enamel retains its noble shine for a long time.
  6. Affordable price. Cast iron baths are relatively inexpensive - from 12,000 rubles. But you can find exclusive copies for 350-400 thousand rubles.

Disadvantages of cast iron baths:

  1. Difficulties with transportation, installation and dismantling due to the large weight and large dimensions of the bath.
  2. Limited number of molds due to the peculiarities of the cast iron casting technology.
  3. Risk of damage to the bath enamel by impact with a heavy object.
  4. It takes a certain amount of time to warm up the metal when filling the bath with water.

A cast iron bath is not a suitable option for old houses with weak ceilings. They may not support the weight of the font, the water drawn into it, and the person.

Features of choosing a bath

The main parameters that should be considered when buying a cast iron bath are the size, as well as the quality of the coating and casting. Let's consider them in detail.

Bath size

The size of the bathtub should be appropriate for the size of the bathroom and the needs of the family members. First of all, it is necessary to measure the room, determine where the font will stand, and accurately calculate the area available for its placement. Selection recommendations:

  1. A sit-down bath, 70 cm wide and 120 to 140 cm long, is suitable if the bathroom is very small. It is convenient to use as a shower tray. In addition, children can be bathed in such a container. The main advantage of a sitz bath is that it makes room for other items.
  2. Standard medium sized hot tubs (150x70, 160x70) are optimal for most typical apartments. Their filling capacity is 160-175 liters. This volume is sufficient for comfortable procedures for a person of average build.
  3. The increased dimensions (170x70, 170x75) baths require more free space. They will be comfortable for a person with a large build.
  4. Large bathtubs (over 180x80) can be installed in spacious rooms with solid ceilings, since the weight of such containers exceeds 150 kg.

In addition to ordinary fonts, cast iron corner baths are produced, the sizes of which vary from 90 to 200 cm. Their sides can be equal or asymmetrical. At first glance, it seems that such a bathtub helps to save space. But it occupies almost the same area as a rectangular one. The "bonus" is the release of one of the corners of the room.

Bath Coating and Casting

The quality of the coating and casting directly affects the durability of the cast iron bath, as well as the ability to keep it clean. The main nuances:

  1. The surface should be flat without bumps and depressions. The outside is worth exploring. Its smoothness speaks for the high quality of casting.
  2. Conscientious manufacturers cover the outer walls with powder enamel. This is necessary to protect the cast iron from deformation. There should be no chips, scratches or cracks on the outside.
  3. Signs of high-quality enamel - smoothness, shine, uniform color, thickness from 0.8 to 1.2 mm. Bumps, bulges, roughness, waves are defects, such problem areas quickly corrode.
  4. If there are children and elderly people in the house, it is better that additional coatings with anti-slip and antibacterial effects are applied to the enamel.

Other criteria

Other criteria for choosing baths:


A good cast iron bathtub can last for several decades. It is inexpensive, retains the heat of water for a long time, absorbs noise and is easy to clean. But, when deciding to buy a font made of this durable material, it is necessary to take into account its large weight, especially if the housing is located in an apartment building.