More in Windows Walls and Doors
When ordering a pre-hung door, you will have the choice of a right- or left-hand swing, as well as having the manufacturer drill the holes in the door for the locksets. If the unit arrives with a brace to keep the door and frame aligned, leave the brace on until the door unit is plumbed, shimmed and secured into place.
Trim any excess drywall around the doorway to make sure the new door will hang plumb.
Remove the plug that comes on the pre-hung door, as well as the temporary trim on the bottom of the door.
Excerpted from Do It Yourself Home Improvement
© Dorling Kindersley Limited 2009