A Cylon repair shed[1] is a transportable container structure containing repair equipment for Centurions.
Such repair sheds were deployed in the aftermath of the orbital bombardments against the Twelve Colonies of Kobol, following the cataclysm known as the Fall of the Twelve Colonies.
A group of Caprica Buccanneers observe Centurions bringing their damaged compatriots and their components back to one such shed, inspiring Samuel T. Anders to take a page from The Tauron Line and hide an improvised explosive device within a Centurion leg, in the hopes such a device would destroy one such container. Despite the operation going sideways, leading to the loss of Kai and Coach, this became the inaugural act of guerrilla warfare against the Cylons by the nascent Caprica Resistance (TRS: "The Plan").