Editing Cast iron (section)

===Buildings===
{{Main|Cast-iron architecture}}

Cast-iron [[column]]s, pioneered in mill buildings, enabled architects to build multi-storey buildings without the enormously thick walls required for masonry buildings of any height. They also opened up floor spaces in factories, and sight lines in churches and auditoriums. By the mid 19th century, cast iron columns were common in warehouse and industrial buildings, combined with wrought or cast iron beams, eventually leading to the development of steel-framed skyscrapers. Cast iron was also used sometimes for decorative facades, especially in the United States, and the [[SoHo, Manhattan|Soho]] district of New York has numerous examples. It was also used occasionally for complete prefabricated buildings, such as the historic [[Iron Building (Watervliet Arsenal)|Iron Building]] in [[Watervliet, New York]].{{Citation needed|date=March 2021}}