Which class of fire includes ordinary combustibles like wood?

The class of fire that includes ordinary combustibles such as wood, paper, and cloth is classified as Class A. This classification is important because Class A fires involve materials that are typically found in everyday environments, making them a common risk in both residential and commercial settings.

Class A fires can generally be extinguished using water, as this helps to cool the materials involved and reduces the temperature below the ignition point. Understanding that Class A pertains specifically to ordinary combustibles helps individuals assess fire risks in their surroundings and respond appropriately in the event of a fire. Other classes of fires, like Class B, focus on flammable liquids; Class C deals with electrical equipment; and Class D covers combustible metals, all of which require different approaches for fire suppression.