An andiron (older form anderne; med. Lat. andena, anderia) is a horizontal iron bar upon which logs are laid for burning in an open fireplace. They are usually used in pairs to build up a firedog, sometimes called a dog or dog-iron. In older eras (e.g. sixteenth to eighteenth century AD) andirons were also used as a rest for a roasting spit or sometimes had a cup shaped top to hold porridge. The earliest andirons were forged from wrought iron.