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Fitting a 4 9/16 door jamb pre hung interior door in a 3 1/4 opening

Fitting a 4 9/16 door jamb pre hung interior door in a 3 1/4 opening


  #1  
Old 03-24-22, 05:10 AM
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Fitting a 4 9/16 door jamb pre hung interior door in a 3 1/4 opening

My old 24x80 bathroom door frame is pretty beat up I decided to replace it with a pre hung door. Without checking I noticed when I got home my door frame opening is 3 1/4 and the pre hung jamb is 4 9/16. To buy a special order jamb it would cost much more and take sometime to receive. I could return the door and try to build a frame and put a door slab in but my skills are not the best when it comes to installing hinges and cutting door holes and striker plates. If it would work to me cutting the door jamb about a inch would save me that extra work. just about a inch on the non hinge side of the frame there is a notch line. I was thinking to use that line as my guide to cut it. What would be a good way to approach this? cut the jamb while its together or take it apart? The jamb looks a little flimsy but I guess I could take my time and take it apart and then carefully nail and screw it back together. What are your guys thoughts?
 
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Old 03-24-22, 05:36 AM
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I think you would be better off trying to make your own frame and fit the slab to fit.
 
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Old 03-24-22, 05:38 AM
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I'd go ahead and cut the jamb to fit .... unless it makes sense to build the wall out.
 
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Old 03-24-22, 05:48 AM
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You would likely want to rip an extra 1/4" off the jamb since you will likely need to glue a solid wood screen mold onto the edge to cover what is likely going to be a mdf or particle board jamb.
 
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Old 03-24-22, 08:44 AM
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I would assume a table saw would be the best to rip the jamb?
 
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Old 03-24-22, 10:01 AM
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Yes
 
 

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