What rooms are in a concentric castle?

A concentric castle typically features multiple layers of walls and various key rooms, including a keep or great hall for living and gathering, a chapel for worship, and storage rooms for supplies. Additional rooms may include barracks for soldiers, stables for horses, and workshops for craftsmen. The layout often includes defensive structures like gatehouses and towers, enhancing both security and functionality. Overall, the design prioritizes both habitation and defense.