![]() Each door frame type is used for specific wall applications. Types of Hollow Metal Door FramesThere are two main types of hollow metal door frames drywall door frames and masonry door frames. Most hollow metal doors have a 1/8" undercut.ĭoor Width: This is the measurement of the width inside of the hollow metal door, less the clearance.ĭoor Height: This is the measurement of the height inside of the hollow metal door, less the clearance. Undercut: Refers to the clearance between the bottom of the hollow metal door frame and the hollow metal door. Net Opening: The net opening is the measurement of the hollow metal door slab. Nominal Opening: The nominal opening is always the distance between the hollow metal door frame. For example, a 3'-0" x 7'-0" door frame indicates a door frame that is for a 3'-0" x 7'-0" hollow metal door. Hollow metal door frames are often referred to by their nominal size. Soffit: The are on the door frame between the rabbets. Hollow metal door frames are available in a single or double rabbet design. Rabbet: The area on either side of the soffit. Stop: The part of the door frame that the metal door closes against. This is the measurement of the face to face dimension. Jamb Depth: The overall width of the door frame profile. ![]() Throat: The opening between the backbends of the door frame. Hinge Jamb: This is the side of the door frame that runs vertically on the hinge side of the door.įace: The exposed part of the door frame. Strike Jamb: This is the side of the door frame that runs vertically on the lock side of the door. Head: This the top piece of the hollow metal door frame. This includes the three main parts of the door frame: the head, strike jamb, and hinge jamb. Hollow Metal Door FramesA hollow metal door frame is the entire steel casing or framework that wraps around the door. ![]()
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