Abstract: A door frame and gusset system for adjustably attaching a strike plate to a door frame. The door frame includes an emboss indentation having slots and tabs. The tabs engage and align a gusset mounted on the back side of the door frame opposite the strike plate. The gusset has threaded holes for engaging screws which attach the strike plate to the gusset through the slots in the emboss indentation. The gusset also has slots which engage the tabs to allow the gusset to move horizontally with respect to the frame and prevent vertical movement of the gusset with respect to the frame. The slots in the emboss indentation allow relative movement of the gusset and strike plate with respect to the door frame to adjust the position of the strike plate. A separate dust box may also be incorporated between the gusset and the door frame. In addition, integral gusset and dust box assembly may be used in connection with the door frame and gusset system.

Abstract: A door frame and a method for constructing a door frame assembly for use in prefabricated housing. The door frame assembly has a header frame and two side frames fixedly attached and constructed out of metal. The door frame assembly is slidable into position in a prefabricated housing unit. The individual frame members are preferably manufactured from galvanized steel.