The Collaborative International Dictionary of English v.0.48:
Ironwork \I"ron*work`\, n. Anything made of iron; -- a general name of such parts or pieces of a building, vessel, carriage, etc., as consist of iron. [1913 Webster]WordNet (r) 3.0 (2006):
ironwork n 1: work made of iron (gratings or rails or railings etc); "the houses had much ornamental ironwork"