Door Jamb on Bottom Plate?

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Old 04-09-17, 10:28 AM
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Door Jamb on Bottom Plate?

I'm preparing to start on building the inner walls of my basement project and will be adding a door, creating a laundry room.

When preparing and measuring for the door, should the door jambs sit on top of the pressure treated plate?

Part of me says no, because placing on the bottom plate would raise the height and bottom of the door.

And the other part of me says yes to avoid the jamb being placed directly on to a concrete slap and susceptible to moisture.

I also only have 7 foot basement ceilings and will likely need to trim the jamb and door a little bit as well.

So place the jambs on top of the plate or not?
 
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Old 04-09-17, 06:17 PM
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Actually the door jambs should sit at the height of your finished floor, whatever that will be. You would cut out the bottom plate with a reciprocating saw before installing the door. Your door will only be 80" in a 81 1/2" high framed opening, so hopefully you won't have to trim it.
 
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Old 04-09-17, 06:51 PM
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The door jambs are set on shims to approximate the finish floor thickness, so they don't really sit on the concrete. Shims are cut off or removed after the door is secured.
 
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