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Old 04-10-2009, 07:50 PM   #1
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problem with window jams

well i baught a house a few months ago, it needs a little work, its my first home so i am learning some of this as i go.

Well i have tore out plaster from the LR walls and ceiling, i did this because the plaster was in poor shape and there is not any insulation in the walls.
Well before the plaster was even tore out i noticed that the window jam ( the box that the window sits in ) was sticking out waaayy to far, now that i am ready for some drywall i need to trim this back so that it meets the drywall, i want it to stick out only 1/2" so it will be flush with the drywall, is there any way to cut the jam back with the windows in place?

it is thicking out about 1 1/2" right now.

thanks for the help.


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Old 04-11-2009, 06:26 AM   #2
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You can't really trim the window frame down, it won't work. Unless there where extension jambs originally installed on the windows. How much space is the between the edge of the jamb and lower sash?? Usually only about 1/2". The better way would be to space the drywall out with furring strips or similar.


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Old 04-11-2009, 07:31 AM   #3
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Install the drywall, then screw a temporary 1x3 board along side of the jamb. Use a router to trim the face of the jamb almost flush with the drywall. Leave it stand about 1/16" out. Remove the temporary 1x3 and sand the face of the jamb. Some people hand plane them down, but I like the router better.
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Old 04-11-2009, 08:04 AM   #4
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I have never seen rock lath and plaster or wood lath and plaster any thicker than an inch in total wall projection. Are you sure it's 1 1/2 inches?

Anyway, another option is to cut nothing at the window and cut shims the size needed for where the trim will extend to the wall. These shims will be attached or slipped under the trim back edge where it meets to the drywall on its outside edges.
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Old 04-11-2009, 08:52 AM   #5
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Just fur out your window mold.
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