Once the subfloor in the other bedroom had been completed the newly re-opened doorway between the two bedrooms needed a new jamb. I used the same method as for the Den to Lounge doorway remake. The main difference with this one is the 15mm gap to the subfloor sheeting at the bottom so that the overlay can extend under. Also, the bricks were too soft to take the screw-bolts so I had to use dyna-bolts instead before covering them over with the MDF strips.
Notice I haven't demolished the wall and ceiling lining yet, so the jambs are aligned with the gyproc lining and not the original rendered wall.
1. Doorway jamb completed.