Door frames and coverings

A door jamb, adapted to be coupled to second and third door jambs to make a door frame assembly, and wherein such door frame assembly is adapted to be attached to building structure members at a doorway rough opening in an exterior wall of a building, said jamb having a front, a rear, a door-facing side and an opposing building-facing side, a length, a depth between the front and the rear, and a thickness between the door-facing side and the building-facing side, said jamb comprising:

• (a) an elongate jamb block (229) extending along the length of said door jamb and comprising a front wall (240), a dosed rear wall (242), a first side wall (224) on a door-facing side of said jamb, and a second side wall (226) on a building-facing side of said jamb, said first and second side walls extending from the front of said jamb block to said rear wall, said front wall, said rear wall, and said side walls defining a rear cavity (230);
• and
• said elongate jamb block defining a generally closed perimeter at the rear of said jamb block,
• said jamb block further comprising a mounting cavity (246) in the vicinity of said rear wall, further comprising a lock receptor in the vicinity of said rear wall and spaced from the mounting cavity (246), and
• (b) an elongate depth extender, said depth extender having a profile extending along the length of said door jamb, and being mounted to said jamb block, said depth extender comprising a rear wall (258), a third side wall (260) on the door-facing side of said jamb, a fourth side wall on the building-facing side of said jamb, said third and fourth side walls extending from the rear of said depth extender to the front of said depth extender, said third side wall (260) terminating in a mounting finger strip (265) locked in a said mounting cavity on said jamb block and said fourth side wall (262) terminating in a locking stud strip (266) locked in said lock receptor (249) on said jamb block, whereby said depth extender is locked to said jamb block, at the rear of said jamb block, by said mounting finger strip and said locking stud.

An elongate depth extender adapted to be mounted on a jamb block thereby to extend a depth of a door jamb, said depth extender having a front end and a rear end, a door-facing side and a building-facing side, and comprising:

• (a) an end wall;
• (b) a first side wall extending between said end wall and the front of said depth extender, on the door-facing side of said depth extender;
• and
• (c) a second side wall extending between said end wall and the opposing end of said depth extender, on the building-facing side of said depth extender,
• said first and second side walls, and said end wall, collectively defining a cavity therebetween, said first side wall terminating in a first mounting structure extending inwardly toward the cavity, and said second side wall terminating in a second mounting structure, spaced from said first mounting structure, said first and second mounting structures extending, as extensions of the respective said side walls, inwardly toward the cavity.

A building in-swing door frame assembly, comprising a first door jamb, coupled to second and third door jambs to make said door frame assembly, said door frame assembly having a front, a rear, a door-facing side and an opposing building-facing side, a length, and a depth between the front and the rear, said first door jamb comprising:

• (a) an elongate jamb block (229) having a profile extending along the length of said first door jamb and comprising a first end wall (240), a second end closed rear wall (242), a first side wall (224) on the door-facing side of said first door jamb, and a second side wall (226) on the building-facing side of said first door jamb, said first and second side walls extending between the first end of said jamb block and said second end wall, said first end wall, said second end wall, and said side walls defining an internal cavity (230), further comprising a door abutment surface on said first side wall of said first door jamb and spaced from said first end wall (240), said elongate jamb block further comprising a strip receiving cavity in said first wall and a lock receptor (249) in the vicinity of said rear wall, spaced from said strip-receiving cavity;
• and
• (b) an elongate depth extender, said depth extender extending along the length of said iamb block, and being mounted to said iamb block, said depth extender comprising a third end wall, a third side wall (260) on the door-facing side of said jamb, and a fourth side wall on the building facing side of said iamb, said third side wall (260) terminating in a mounting finger strip (265) locked in an undercut portion of said strip-receiving cavity in said first side wall of said iamb block, and said fourth side wall terminating in a locking stud (266) locked in said lock receptor (249) on said iamb block.