Abstract: A multi-component door frame assembly, including a door jamb having a length and contact surface. A plurality of ribs along the length of the door jamb and extending distally from the contact surface. A door stop detachably fixed to the door jamb and adapted to receive a door when the door is in a closed position.

Abstract: A screw attachment plug includes a proximal portion having a first diameter and a first height, a middle portion having a second, constant diameter, a second height and a means for preventing rotation of the plug relative to the substrate and the portion. The screw attachment also includes a distal portion including a distal end, proximal end, and an outer surface therebetween. The plug includes a bore through the proximal, middle and distal portions adapted to receive a screw and a plurality of slots in the distal section, each defined by an open space between the outer surface and the bore thereby separating the distal portion into a plurality of sections. The open spaces are adapted to expand when a screw is inserted into the bore to thereby expand at least the middle and distal portions within the substrate.