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I saw the writing on the wall. Windows had been installed for quite some time and I kept looking at the jambs saying how am I supposed to deal with this?

While other projects were ongoing it finally hitme.

Wood Ceiling Window Room Plywood


I had window jambs that were 1/4-1/2 inch out of plumb. By removing the extension jamb and cutting my metal security strap I was able to pull the jamb in to position w a bar clamp. Now this is a new house and the walls/openings are square. It's just that the window install was done to quickly without attention to detail. None of this was noticed until drywall was installed.

I used scrap wood to protect the window frame and the finished plaster and paint.

After sucking it in I was able to install window trim with ease.

Window Property Room Wall Sash window
 

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That's an old finish carpenter's trick. Old timer showed me that awhile back. Works we'll in most cases. If not, I take a small block plane and hand plane the jamb extensions when they're in place.
Mike Hawkins;)
 

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If the extension jambs stick into the room, they can be planed off with a hand or power plane or with a router and modified base. For extension jambs that are too small, pulling the window in works sometimes. Gluing on a strip to the extension jambs may work, also. I have done both. Sometimes it is the sheetrocker's fault, where they do not use enough screws. I have added screws to pull in the sheetrock and I have shaved off a layer of sheetrock in other cases.

The extension jamb battle is always the nightmare for trim carpenters.
 
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