Absolutely NOT. You set us the Jig once with few easy steps for the drawer and then use the setup on all same size drawer with no further setup and measurement (except marking the center).

For the Doors, you set up once for top right door and top left door and use the same setup for the bottom drawers.  Or you can use the bottom doors for initial setup and use it for top doors.

Either way, the setup is done ONLY once and you use it for ALL the doors.  This is the beauty of our Jig.  We feel the flexibility and easy of use is unmatched. This is very clearly explained in the included user instructions.