by KennyoftheSands » Wed Oct 29, 2014 3:09 pm
Assuming you mean a Strongbox, it's used to store items in a "Locked Box". The construction costs are steel and bronze, after building you get a key which is required to open the Strongbox. Strongboxes have a greater soak than palisades, and are therefore used best in palisade villages to protect your goods which your walls can not protect.
Usually I'd refrain from using it since it has a bad storage space/tile, but I like them for their way to store resources while in unwalled territory.