DIY Network

Going In & Out: Pre-hung Door Assembly and Installation From "Home IQ" episode DHIQ-108

	Figure A
	Figure B
	Figure C

The outside doors are in and the interior doors have been ordered. The types of interior doors going into the Oberg's home are known as pre-hung doors. Viewers go along to the factory as these doors are assembled and hear from Howard Wolff who describes the assembly of the door as it's being put together. The pre-hung doors are installed.

• Pre-hung doors are hung on their frame, or jamb, at the factory (figure A).

• First, the hinges are attached to the door and to the hinge jamb. Brad and Lynn chose many different finishes for their hinges, including satin nickel and bright chrome. These details are sent to the assembly plant so that each door receives the correct hardware.

• For each door there is a hinge jamb and a strike jamb (figure B), which is the piece where the striker from the door knob will sit.

• The head jamb is nailed into the door next, and it's vital that it aligns with the side jambs. A bottom skid jamb is attached to protect the door when it's transported to the jobsite.

• The next step is to apply casing -- or trim -- to the door (figure C). The casing is attached to both sides of the door. Having the trim attached at the factory is less costly than doing it on-site.

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	Figure F