What is one of the two styles of wood door frames?

The correct answer is rabbet. In the context of wood door frames, a rabbet refers to a recess or groove that is cut into the edge of the frame, allowing the door to fit snugly against it when closed. This design not only enhances the structural integrity of the door frame but also helps in sealing against air and water penetration, providing better insulation and security.

In construction, the rabbeted style is commonly used due to its effectiveness in aligning and accommodating the door's edges, making it a popular choice among builders and architects. The rabbet also facilitates easier installation, as the door can be mounted directly within the frame without additional framing materials. Understanding the concept of a rabbet is crucial for fire fighters, especially when assessing fire doors and understanding the construction features that affect fire ratings and safety measures.