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Old 03-21-2008, 09:12 AM   #1
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Prehung entry door gap problem

We bought a 36 inch prehung steel door made by Jeldwen at Home Depot. I am a DIY person and have done all new 6 panel doors in house and many other update projects so this is not the first door that I have ever installed. The problem I am having is that the door has a 1/4 inch gap at the bottom on the door knob side and it has almost no gap at the top. The weather stripping is not keeping the air out of the bottom so I have a bad leak. When I place my level on the threshold it is dead center. The door casing at the top is snug on my house frame and at the bottom I had to use shims. When I place the level on the side of the door casing from top to bottom it is off. Since this is a prehung door and the door is secured on top and bottom on all 4 corners would this be a case of the door being not made correctly or have I done something wrong? My old door that I took out had no leaking problem or gap and it fit very snug so snug that there were no nails holding in the sides holding the door casing to the studs. I was surprised about that!! I did not install that door.


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Old 03-21-2008, 10:18 AM   #2
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Because of the lack of clearance around the door frame, the frame is not square, it is a parallelogram or 'racked'. You will need to cut some additional clearance in the framing to allow the new door frame some clearance to be shimmed in square.


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Old 03-21-2008, 06:32 PM   #3
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As stated, the door frame sounds like it is racked. (2nd vote)
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Old 03-21-2008, 07:45 PM   #4
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Ok, thanks for the replies. Tomorrow I will look into more.
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