Enameled Cast Iron
Pros – Very substantial, timeless look, durable, wide variety of colors, retains heat well, mid-range price.
Cons – VERY heavy – floor may need to be reinforced to support tub, can chip so you see the black cast iron below, fancier (claw foot) more expensive.
Enameled Steel
Pros – More affordable and lighter than cast iron, but with a similar look.
Cons – Can chip easily, limited colors, can be noisy when water hits it, can dent on installation.
Fiberglass
Pros – Affordable, lots of styles, lightweight.
Cons – Finish is not as durable as acrylic, doesn’t hold heat well, can scratch and fade, limited colors.
Acrylic
Pros – Wide choice of styles, colors and sizes, more durable than fiberglass, lightweight, holds heat well if insulated.
Cons – More expensive than fiberglass, can scratch and stain (especially with hair dye).Cast Polymer – Cultured Marble, Granite or Onyx
Pros – Looks like stone, thicker than acrylic, holds heat well. Cons – Gel-coat finish not as durable as acrylic.Soapstone
Pros – Retains heat well, good for timeless or contemporary custom look.Cons – Very expensive, heavy.
Metal – Brass, Copper
Pros – Creates a custom look, thicker gauges resists dents.Cons – Very expensive, limited sizes and shapes.