A furniture carpenter's duties involve designing, building, repairing, and installing custom wooden items like cabinets, shelves, and tables, requiring skill in reading blueprints, precise measuring, cutting, shaping, assembling with various tools (saws, drills, sanders), installing hardware (handles, locks), and finishing wood, all while ensuring quality, adhering to safety, and maintaining client satisfaction. They often work from workshops or sites, source materials, consult with clients, and maintain tools.