In the place we re modeled he did much of our trim work and like the op we had many jams that were not parallel nor flush with the walls.
Drywall extends past door jamb.
It s important to know what to do in less than ideal situations.
Not everything is perfect.
Use a measuring tape to record the distance from the drywall to the door edge to determine the length.
It is an old house 1920 s 2 story that had 2 layers of lathe and plaster on it.
As an amazon associate i make.
Doorjambs are designed to fit standard width walls made out of 2 by 4 or 2 by 6 lumber plus a layer of 1 2 inch drywall on each side of the wall.
Watch a simple way to build and install your own wood trim that also solves a common problem with drywall that extends too far past door and window jambs.
Determine the length of the side jambs and the horizontal jambs.
Window jambs extend beyond drywall.
I have a homeowner who has window and exterior door jambs that extend past the drywall by about 1 1 2 inches.
A buddy of mine does trim work for a living.
The ripped out the plaster and put in drywall and now all of the jambs protrude past the drywall.
Tools used on this job.
The door casing is nailed to the jamb and to the wall and covers the space between the doorjamb and the wall.
What he ended up doing is to extend the jam in order to split the difference i e at maximum the jam was 1 8 past the dw at minimum 1 8 behind.
These jambs span from one side of the wall to the other.