Carpenter's Workshop is a Bretonnia military recruitment building in Total War: Warhammer. As well as making weapon hafts and quintains, carpenters also work on larger projects - such as trebuchets.
Since the King himself commissioned a number of trebuchets built to act in the defence of Couronne, their popularity has increased. Carpenters' plans for the device have now been published and spread to most regions. The battlefield variant is smaller than the kind used in sieges, in order to keep it relatively mobile. Having said that, it remains no small task for the carpentry crews to assemble and then disassemble one at a battle's end.