What material is commonly used for the construction of exterior door frames?

Wood is commonly used for the construction of exterior door frames due to its natural strength, durability, and aesthetic appeal. Wood provides excellent insulating properties, helping to prevent heat loss and improve energy efficiency in buildings. In addition, it can be easily fabricated to create a variety of styles and designs to suit different architectural preferences.

While other materials like aluminum and fiberglass are used in specific applications and can offer certain advantages, such as resistance to corrosion or lower maintenance requirements, wood remains the traditional choice for exterior door frames. Plastic, on the other hand, is generally less durable and may not provide the structural integrity needed for door frames, which are subject to significant wear and tear.