First of all what is a door jamb.
Door jamb or floor first.
Hold a casing leg in place with its edge on your pencil marks.
Before the floors go in you can easily shim one end of the jamb to get the door exactly plumb.
The door needs to fit comfortably inside the jamb.
The jambs also called the door legs are the interior sides of a door frame specifically the parts of the frame that hold the mounting hinges on one side and the strike plate for the latch on the other.
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At this point the only other difference with installing a pre hung door for a room that will be carpeted is that i keep the shims and the nails close to the floor on both sides.
This is the horizontal component that sits on the floor below the door.
Pine with pvc base 3 piece.
When i m satisfied with the height of the strike jamb i insert shims behind the jamb and nail it off adjusting the jamb until it aligns perfectly with the door stop.
The sill is also.
The home depot ever jamb exterior door frame kit 4 9 16 in.
Add or remove shimming so the door fits.
If the door frame is done first then does the tile installer just cut tile so that it fits snuggly against the bottom of the door frame or for a more seemless look does he rough cut and install it so that it 39 s just beneath the door frame and is there just a bit of a gap between the concrete floor and the door frame.
Look for the gap between the door and jamb to be one eighth of an inch 32 cm on all sides.
Either way to trim a door you need to bridge the gap between the door jamb the frame from on which the door is hinged and where the latch engages and the wall.
Theres one good reason to install the doors first and that is if your floor is not level across the threshold almost always off by some factor in my house.
After floors this would be a huge pain to do since you would need to pull the door out and.
Place the door inside the jamb.
You can hold the jamb in place by lightly hammering in a few nails.
That may be installed along with it.