What components make up an interior door frame?

An interior door frame consists of several key components that work together to support the door and ensure proper operation. The correct answer identifies these essential parts: two side jambs, a head jamb, a sill, and a stop.

The two side jambs are the vertical framing pieces that run along each side of the door, providing support and alignment. The head jamb is the horizontal piece at the top of the frame that connects the two side jambs and adds structural integrity. The sill, which is more commonly found in exterior frames, can sometimes be included or referenced in interior frames to denote where the bottom of the door meets the floor or is utilized in certain types of designs. Lastly, the stop is a small strip attached to the frame that prevents the door from swinging too far open and helps create a seal when the door is closed.

Other answer choices either omit critical components or include parts that are not standard in a typical door frame. For instance, while hinges are essential for hanging the door, they are not part of the frame assembly itself and wouldn’t collectively characterize the door frame. Insulation is also not a component of a standard door frame but may pertain to specific types of doors used in particular environments. Thus, the choice that lists all