If you are planning to replace Your doors, DO NOT measure the exisiting door. You must always base you measurements on the door frame. There is an old craftsman’s expression, “measure twice, cut once”, so please bear this in mind.
Taking some rough measurements to figure out what unit size your home might need is always a good idea when starting out your door purchasing experience.
When it comes to making the purchase of your new door, we strongly recommend that the installer who will be installing the unit, confirms your measurements to ensure a proper fit.