Interior door question


  #1  
Old 07-23-21, 10:14 AM
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Interior door question

Im replacing several hollow-core interior doors for bedrooms. The jamb is almost a perfect 80x30. So I bought an 80x30 6 panel hollow slab door and I noticed that my strike plate in the jamb is 41 from the ground. So I bored a hole for the doorknob but it was 3-4 higher than the lock block inside the door.

Does the knob have to be in the lock block or can it be higher? Or should I lower the knob to 36 but the drill a new strikeplate hole and patch the old one?

thank you
 
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Old 07-23-21, 10:34 AM
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#1, It would have been a lot easier to just buy a prehung door and replace the whole thing.
#2, Why did you not just use the old door as a template?
 
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Old 07-23-21, 10:42 AM
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I did use the old door as a template - everything is exactly the same as the old door. The 1980's door I'm replacing seems to have a large lock block up the whole side of the door.It is still hollow code though. When I bored the knob hole in the new door I was up above the lock block.
 
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Old 07-23-21, 10:46 AM
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Don't worry aquabat, I understand what you mean.

41" is unusually high. It's up to you what you do. but unless you want to scrap the door, you need to make it work. You could use the hole you bored, but the screws may get loose since the door has no solid backing inside. If you cut a couple shims and could glue them into the hollow area around your bore, that might be enough to give the knob some solid backing so that it doesn't crush when you tighten the screws.
 
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Old 07-23-21, 11:41 AM
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If you cut a couple shims and could glue them into the hollow area around your bore,
I'd call them little blocks of wood but it's still the same thing - to give the hollow area support around the hole.
 
 

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