Most pedestal and wall-hung sinks are made from vitreous china, and the same qualities that make this material a good choice for toilets work well for sinks too: a durable, abrasion-resistant, easy-to-clean surface that maintains its luster year after year.Choose vitreous-china sinks-particularly pedestal sinks-with care, especially if you’re unfamiliar with the brand, because any ceramic manufacturing process produces a high number of seconds that may have defects ranging from minor blemishes or depressions in the surface to hairline cracking and out-of-plumb or warped mating surfaces. This can mean drop-in self-rimming sinks that don’t sit flat (particularly larger ones) and two-piece pedestals that just don’t quite go together correctly.
Enameled cast iron has most of vitreous china’s good qualities, and it is much less prone to cracking. Cast iron is strong, rigid, and quiet when water is running into it, although it can chip if mishandled during shipping or if a hammer gets dropped on it during installation. Cast-iron sinks are very heavy, which may not make that much of a difference with smaller vanity bowls, but can make handling larger sinks hard on the back.