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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View Comments
WORKSHOP LOOKS LIKE IT'S READY TO FALL OVER .....HILARIOUS.
Or you can plumb and fit the hanging side leg, ensuring the head is level, hang the door then pack the clapping leg over until the correct penny gap is achieved then fix the leg. Then fit the plinth blocks and architrave to the casing
I had a dream of Tom Silva last night... he was teaching me how to use a string line and yelling at me and throwing his tools at me. What a mean man.
Hahaha what about Frank though?
Works like a chum!
While your working on that door you better fix them barn doors cause I can tell you it'll be a drafty cold winter in their
Yeah did a little work back here, what’s it to ya?
How much does the show charge people to come show them how to fix things?
What about buying antique frwnch doors to install in opening (btw living& dinning room) where no door has ever been. House built 1912