Firefighting design refers to the planning and design of fire protection systems for buildings, structures, or other facilities. The purpose of firefighting design is to prevent, detect, and control fires, and to protect the occupants of the building and its contents. Firefighting design includes several systems, such as fire suppression systems, fire detection and alarm systems, and fire evacuation systems. These systems work together to provide a comprehensive fire protection solution. Fire suppression systems include automatic sprinkler systems, foam systems, and dry chemical systems. These systems use water, foam, or other chemicals to extinguish fires or control their spread.

Firefighting design also includes considerations such as building codes, safety regulations, and environmental factors. The design process may involve collaboration between mechanical engineers, architects, fire protection engineers, and other stakeholders to ensure that the fire protection system meets the needs of the building and its occupants, and complies with local regulations and standards.

"Firefighting design can be applied to a wide range of buildings and facilities, including residential homes, commercial buildings, hospitals, and industrial facilities. The design process may vary depending on the type of building or facility and the specific fire protection needs of that building or facility."