Note that you will leave the standard 1 4 inch expansion gap on either side of the doors.
Laminate under door trim.
Install the last row of laminate flooring stopping 1 2 inch from the bottom edge of the patio doors.
I made a quick video on how to undercut door jambs for laminate flooring it is a diy job most people could undertake themselves if the have some basic tools.
Using a framing square measure the depth of your door jamb by sliding the square under the newly cut gap until the tool hits the door frame or stud.
Measure on the inner jamb as well as both sides of the door where the trim is located.
The 1 2 inch gap is for the doorway only.
You can deal with door jambs by trimming the molding that conceals the.