Damaged armour is an item that can be found by digging at the digsite, from the Fishing Trawler minigame, or from pick-pocketing certain monsters (including H.A.M. members). It is also found in ogre coffins (see Ogre coffin key), and can be telegrabbed inside the Ranging Guild's archery competition spot.
Players may also find damaged armours scattered throughout RuneScape in the form of scenery. However, these ones may not be picked up.
Members can repair it at an armour stand (55 construction required to build, but players could use others') in the workshop of a player-owned house. It will then become a platebody armour made from a random metal, although there is a significant chance of breaking it beyond repair. The most common armour produced this way is an Iron platebody, though bronze, steel, black and mithril are also possible. Successfully repairing a damaged armour gives 25 Smithing experience.
For an exhaustive list of all known sources for this item, see here
The probabilities in this section are an estimation based on the data of repairing 3,957 damaged armours.