If you’re thinking about upgrading to a cast iron bath tub, you’ve come to the right place. These handmade pieces of art are made of molten iron and finish with an enamel white finish to give them a high sheen. The weight of the cast iron bathtub can be significant. If you’re planning to use your tub as a shower, you may want to consider installing a shower enclosure. While you can’t do this alone, it can be done by several people and may require a crane or other heavy equipment.