Door jamb member, door jamb assembly incorporating same and kit therefor

1. A door jamb assembly, comprising:

a plurality of longitudinal door jamb portions, each door jamb portion comprising:

a longitudinal door jamb member comprising a longitudinal rounded channel and plurality of longitudinal internal cavities, and

a longitudinal frame member comprising a rounded longitudinal edge matingly engaging the rounded channel of the door jamb member; and

a plurality of corner keys, each corner key forming a generally right-angled joint between two of said doorjamb portions, a portion of each corner key being external to both said door jamb portions joined within said generally right-angled joint,

wherein each corner key has a plurality of pins extending therefrom matingly engaging the internal cavities of the door jamb members for forming the generally right-angled joint, the generally right-angled joint defining a generally right angle about an axis, the plurality of pins being spaced along the axis,

wherein each frame member has a greater length than the doorjamb member to which it is matingly engaged, and

wherein each corner key further comprises a cap pin extending therefrom substantially parallel to the axis of the respective corner key, the cap pin being sized to be generally commensurate with a portion of the frame member extending beyond an end of the doorjamb portion to which the respective corner key is matingly engaged so as to cover an end of the respective door jamb portion.

2. The door jamb assembly of claim 1 , wherein each door jamb member further comprises a longitudinal clip disposed adjacent the rounded channel and engaging a longitudinal groove adjacent the rounded longitudinal edge of the frame member engaged thereto.

3. The door jamb assembly of claim 1 , wherein each door jamb member further comprises a first channel for accommodating weather stripping.

4. The door jamb assembly of claim 1 , wherein each door jamb member further comprises a second channel for accommodating exterior trim.

5. The door jamb assembly of claim 1 , wherein each door jamb member further comprises a third channel for accommodating a reinforcement member.

6. The door jamb assembly of claim 1 , wherein each door jamb member is extruded or pulltruded.

7. The door jamb assembly of claim 6 , wherein each door jamb member is fabricated of extruded polyvinyl chloride (PVC) cap stock.

8. The door jamb assembly of claim 1 , wherein each corner key is injection molded.

9. The door jamb assembly of claim 1 , wherein each corner key comprises a first panel and a second panel, the first and second panels each having pins extending therefrom.

10. The door jamb assembly of claim 1 , wherein the rounded channel and the internal cavities extend the length of each door jamb member.

11. The door jamb assembly of claim 1 , wherein the rounded longitudinal edge extends the length of each frame member.

12. A kit for a door jamb assembly, comprising:

a plurality of longitudinal door jamb portions, each door jamb portion comprising:

a longitudinal door jamb member comprising a longitudinal rounded channel and a plurality of longitudinal internal cavities, and

a longitudinal frame member comprising a rounded longitudinal edge configured for matingly engaging the rounded channel of the door jamb member; and

a plurality of corner keys, each corner key configured to form a generally right-angled joint between two of said door jamb portions, each corner key having a portion external to both said door jamb portions joined within said generally right-angled joint,

wherein each corner key has a plurality of pins extending therefrom configured for matingly engaging the internal cavities of the door jamb members for forming the generally right-angled joint, the generally right-angled joint defining a generally right angle about an axis, the plurality of pins being spaced along the axis,

wherein each frame member has a greater length than the doorjamb member to which it is to be matingly engaged, and

wherein each corner key further comprises a cap pin extending therefrom substantially parallel to the axis of the respective corner key, the cap pin being sized to be generally commensurate with a portion of the frame member extending beyond an end of the door lamb portion to which the respective corner key is to be matingly engaged so as to cover an end of the respective door jamb portion.

13. The kit of claim 12 , wherein at least one of said door jamb members is one or more of (i) separate from, and (ii) unsecured to, one said frame member.