Andrew Gabriel wrote:

An electric plane is excellent for this. A new sharp blade will
not cause splintering along the sides, but you'll still need a
scrap piece to prevent splintering at the end. Run the plane
an equal number of times in each direction, to avoid the bottom
of the door taking on an angle due to cumulative errors in the
cutter setting.


Agreed, an electric plane makes the job easy and neat. I did this to the
type of door mentioned by the OP, when I fitted laminate and needed about
5mm off the bottom of most of my doors.

To the OP: Plane in from each end towards the middle. Planing along and off
the end will splinter the end. Watch out for panel pins in the door -
nicked the blade of my power plane doing that(!).

HTH

Tim