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Discussion Starter #1
Hi, I had a sliding patio door installed, but I still have about 1/2 inch of the 2 by 4 showing on the inside. How would I finish it out. I assume I need a jamb extension, but I only have about 1/2 to work with. I took a picture showing a closeup of it. I would appreciate any suggestion or comments Thx.

 

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A "Handy Husband"
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You need to cut an extension jamb to bring the regular jamb out flush with the drywall so that you can install casing. Get a piece of 1by stock the same wood as the jamb (usually clear pine). Measure the max width for the extension and rip to that width plus a saw blade. Hold your piece up to the jamb and scribe to the wall. Trim your extension back to the scribe line with a power planer. Or a regular plane, only it will take longer. Nail and glue your extension onto the jamb and install your casing.
 

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Discussion Starter #4
Thanks for responding. The sliding door itself is made out of vinyl (the white part) so I can't nail into it. The only wood is the 1/2 inch of 2 by 4. Should I nail into it? The reason I ask is that it is such a small space to nail into.
 

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A "Handy Husband"
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Thanks for responding. The sliding door itself is made out of vinyl (the white part) so I can't nail into it. The only wood is the 1/2 inch of 2 by 4. Should I nail into it? The reason I ask is that it is such a small space to nail into.

If the jamb is a composite, glue and use trim screws to secure the extension to the jamb. The casing will cover the trim screws. If you try to secure the extension to the 2 by 4 framing you will never line it up with the jamb.
 

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I would recommend assembling the casing and extension jambs together as one unit and then installing it. A rip that small won't have enough strength to move on you. If you don't have that kind of confidence, rip some shims and install the extension first. If you angle some 18 guage brads you will easily be able to hit the 2x4. Assemble the extension as one piece after you take your measurements. Cut the head piece 1 1/2 inches longer so that you can overlap the two legs and predrill to avoid splitting. I think you are "overthinking" what you need to do.
 

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Discussion Starter #7
I would recommend assembling the casing and extension jambs together as one unit and then installing it. A rip that small won't have enough strength to move on you. If you don't have that kind of confidence, rip some shims and install the extension first. If you angle some 18 guage brads you will easily be able to hit the 2x4. Assemble the extension as one piece after you take your measurements. Cut the head piece 1 1/2 inches longer so that you can overlap the two legs and predrill to avoid splitting. I think you are "overthinking" what you need to do.
I appreciate the response. You are probably right that I am "overthinking" what I need to do. I have some OCD issues that drive my wife crazy. I will go ahead and try what you mentioned since it seems to be the most straight foward way to get it done. I see you are located in The Woodlands. I was raised on a farm on Rayford Rd way before The Woodlands existed. I miss living in that area. Thx for the suggestions.
 

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Old School
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I'm with PB. Just paint it. People often pay extra to get a stepped look like that.
 
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