when installing a prehung door, what should be done with the factory - installed spacer shims between the…

when installing a prehung door, what should be done with the factory - installed spacer shims between the door and the frame?\nleave in place permanently\nremove before installation begins\nremove after the door is attached to the rough opening\nremove when the door is in place, but before attaching it to the rough opening
Answer
Answer:
remove after the door is attached to the rough opening
Brief Explanations:
Factory - installed spacer shims are used for initial alignment during installation. Once the prehung door is attached to the rough opening, they are removed as they are no longer needed and may cause issues if left in place.