Are you sure it is not a split jam that just pulls apart and you then
install the side with the door first, shim it, nail it, and then install
the other side and nail it? Mine are like that. Found a couple that
were not nailed on the non-door side.

Tim.

DaveC wrote:
Bought pre-hung door with frame (obviously) and trim already installed.

The only way I can see to install this door is to remove the trim from both
sides and, after installing the door and frame, reinstalling the trim.

Is this correct? If so, what reason is there for installing the trim onto the
frame?

I need to install the shims on all sides of the frame, so I can't see how to
install the shims with only one side of the trim removed...

Ideas?

Thanks,