How old does something have to be to become an antique?

An item which is at least 100 years old and is collected or desirable due to rarity, condition, utility, or some other unique feature. Motor vehicles, in contrast, are considered antiques in the U.S. if older than 25 years, and some electronic gadgets of more recent vintage may be considered antiques. Any piece of furniture or decorative object or the like produced in a former period and valuable because of its beauty or rarity is an antique.