Surface mounted door frame

A shell portion of a door frame, consisting of

• a shell support arm,
• a facing arm, coupled to the shell support arm,
• a shell rabbet arm, coupled to the facing arm,
• a stop, coupled to the shell rabbet arm,
• a soffit, coupled to the stop,
• a return, coupled to the soffit, and
• a backbend, coupled to the return,
• wherein the shell rabbet arm and the stop define a rabbet, and
• the stop and the facing arm extend from the shell rabbet arm in opposite directions.

A sub-buck portion of a door frame, consisting of

• a sub-buck mounting arm having at least one mounting aperture,
• a sub-buck rabbet arm, coupled to one end of the sub-buck mounting arm, and
• a sub-buck support arm, coupled to the sub-buck mounting arm opposite the sub-buck rabbet arm,
• wherein the sub-buck portion is capable of being surface mounted to a single surface of a non-protruding wall.