Which of the following types of wood is classified as a hardwood?

Oak is classified as a hardwood due to its characteristics and the type of tree it comes from. Hardwoods are derived from deciduous trees, which shed their leaves annually. Oak is known for its density and strength, making it a popular choice in various applications, including furniture, flooring, and cabinetry. The density of oak wood also contributes to its durability and ability to withstand wear, making it a preferred material in the funeral service industry for caskets and other memorial products.

In contrast, the other types of wood listed—pine, cedar, and spruce—are classified as softwoods. Softwoods typically come from coniferous trees, which remain evergreen and shed their needles rather than leaves. This distinction helps in understanding the immediate physical properties of these woods, which influences their use and suitability for specific purposes.