How to Prehang a Salvaged Door | Ask This Old House

Ask This Old House general contractor Tom Silva shows a homeowner how to turn an old door into a prehung door for a new opening
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Time: 5-6 hours

Cost: $150

Skill Level: Advanced

Tools List for Prehanging a Salvaged Door:
Four Foot Level
Tape Measure
Miter saw
Drill/driver
Pneumatic nailer
Countersink drill bit
Clamps
Pencil

Shopping List:
3” Screws
8d Finish nails
Wood shims

Steps:
1. Use a four-foot level to check if the existing floor is level. Make the bubble level and then measure the distance from the floor to the underside of the level. This will determine the long side of the jamb.
2. Measure the height to the jamb header of any existing doors to ensure the new door matches.
3. Use a miter saw to cut the jambs to length.
4. Use a countersinking drill bit to predrill holes in the jamb pieces. Connect the jamb using 3” screws.
5. Mark _” reveal for the casing on the jamb with a pencil.
6. Set the side casing on the line on the jamb and then attach with 8d finish nails.
7. Allow the head casing to overhand the side casing by _” on each side and attach.
8. Attach a temporary filler strip across the bottom of the jamb to hold it square when moved.
9. Test fit the jamb assembly in the opening.
10. Add wood shims to the door framing to make one side of the jamb plumb.
11. Clamp the jamb flush with the drywall or plaster, then screw the jamb through the shims into the framing.
12. Add shims to the other side of the jamb and attach in the same manner.
13. Bring the door in and test it.
14. Add shims behind the locket.
15. Cut the shims flush with the jamb.
16. Add casing to the other side of the door jamb.

Resources:
The Door used for the install was original to the house and provided by the homeowner.

All of the tools, nails, and shims used can be found at the home center.

About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we're ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.

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How to Prehang a Salvaged Door | Ask This Old House
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Видео How to Prehang a Salvaged Door | Ask This Old House канала This Old House