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Discussion Forum

Window Jamb Extensions

Ebe | Posted in General Discussion on April 2, 2008 06:24am

All right I need some help and input here……budget is getting tight as I near the completion of our remodel and I am down to trim work and need to start preping for window extension jambs.

I installed White vinyl windows, sweat very very little. I am looking for some ideas for affordable oak extension jambs.  My thoughts to this point have been to use 3/4″ plywood with edges covered with oak veneer…..not my favorite choice.   OR   ripping down oak veneer door jambs to appropriate widths.

your thoughts and ideas are appreciated.

Thanks in advance!!!

Ebe

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  1. arcticcat | Apr 02, 2008 06:43am | #1

    Here in my neck of the woods, you can usually buy 3/4 oak boards for about the same cost of 3/4 plywood (square foot wise).  No need to worry about edge-banding or anything either.  May have some more waste tho.  I rarely use any plywood for jambs, except for real deep jambs.

    I see you're in Henning - my wife's friend's husband is the new principal of the schools up there.   I think they're moving up there soon.

    Mike

    1. Ebe | Apr 02, 2008 07:12am | #2

      Hey Mike,

      what part of Southern Minnesota are you in?   I grew up in Windom is that anywhere close to you?

      I see you must ride green machines do you Sled much up north here or do you go west or to the UP?

      Back to the project in mind.... my jambs are about 3 1/4 to 3 1/2 inches deep.  14- 5' high window to do plus my picture window.

      I just paid $ 9.99 for a 1x4x8 clear red oak at Menards. So solid oak would cost about $20/Wdw x15 would total $300 plus picture wdw for a total of nearly $340 plus tax.

      Thanks for the input....my dad has a friend that has a saw mill so I may contact him for some pricing for some solid oak.

      Ebe

       

      1. grahammay | Apr 02, 2008 07:30am | #3

        Search for a local hardwood dealerDo you have table saw, jointer, thickness planer

        1. Ebe | Apr 02, 2008 08:02am | #4

          I have a table saw.... and fellow carpenter buddy with planer.

      2. arcticcat | Apr 03, 2008 06:05am | #11

        I'm over by Albert Lea, been to Windom a few times so I know where you're at.

        We need to get you hooked up with a good local sawmill.  IIRC, Renneberg Hardwoods is up your way & I'm sure there are many others.

        BTW, my Cat sat idle most of the winter.   Had some problems with the kill switch & too much work to ride much any way.  Maybe next year.

        Mike

        1. Ebe | Apr 03, 2008 06:24am | #12

          I am coming your way tomorrow. will be in New Richland around noon and then turn and burn back north for more trailers.

          I have heard of Renneberg and seen some of their stuff pretty nice they are just outside of Menagha, MN. which is about 40 minutes from here. I just haven't had time to get there to check them out.

          Ebe

          1. arcticcat | Apr 04, 2008 05:15am | #15

            I'm guessing your going to that trailer dealer there at 13 & 30?  Just noticed that place the other day - had a kitchen job to look at just a half mile from there.   You a full time trailer jockey?

            I was thinking Renneberg was up your way.  I've been to their store in Sioux Falls, SD & I think they just opened one in Faribault too. 

            Anyways, good luck with your project.

            Mike

  2. sotabuilder | Apr 02, 2008 10:15pm | #5

    Ebe, what may be a cheaper option would be to buy a sheet or two of MDF and rip that for your extension jambs, then paint them the same color of your sashes and install your oak casing on the face of the wall only. If the windows are white already then white extension jambs will look just fine.

    1. vanderpooch | Apr 03, 2008 12:29am | #6

      Hate to disagree with you there, sota, but MDF makes for lousy extension jambs. Edge nailing into it has very little holding power and tends to flake out. I'd only use it as a last resort, and then with glue and as little nailing as I could possibly get away with when it comes time to install casing.I do think your idea of painted extensions is a good one though if the OP is trying to save some money. Poplar or #2 pine carefully picked or even FJ pine would do okay....Just one guys opinion though,- KitTechnique is proof of your seriousness. - Wallace Stevens

      1. sotabuilder | Apr 03, 2008 12:50am | #7

         I might agree if we were looking into actually holding something, here the nail into the trimmer or king stud of the casing and a pinner into the jamb extension would be more than adequate to keep everything in place. Our company uses MDF religiously and have no problems with it, however we have learned some new techniques on working with it. But if you were concerned poplar would be my other choice.

      2. alrightythen | Apr 03, 2008 04:26pm | #13

        I've found that MDF jamb extentions work quite well. ( Even viewed several years later.) And as was stated, they are also nailed into a stud.   View Image                                          View Image    

        1. vanderpooch | Apr 03, 2008 05:31pm | #14

          I've used them, too. To be specific, I was talking about nailing the casing to the edge of the jamb extension. Just feel there are better materials out there for that application is all. Everyone, including me, loves how the stuff paints up.- KitTechnique is proof of your seriousness. - Wallace Stevens

    2. Ebe | Apr 03, 2008 02:08am | #10

      I will run the idea of painted jamb extensions past the queen and see what she thinks....if I had been quicker I may have trimmed out in sheet rock and had it taped and textured when drywaller was here.

      I would probably opt for ripping down some pine/popple as I have some of this in the garage..... I am just looking for a poor mans answer to oak jambs.

      thanks for the input and ideas.

      Ebe

  3. DanH | Apr 03, 2008 12:53am | #8

    How much of an extension do you need? 1/2"? Two inches?

    What is wanted is not the will to believe, but the will to find out, which is the exact opposite. --Bertrand Russell
    1. calvin | Apr 03, 2008 01:24am | #9

      my jambs are about 3 1/4 to 3 1/2 inches deep.  14- 5' high window to do plus my picture window.A Great Place for Information, Comraderie, and a Sucker Punch.

      Remodeling Contractor just outside the Glass City.

      http://www.quittintime.com/

       

  4. User avater
    basswood | Apr 04, 2008 06:32am | #16

    I'm late to the party...looks like you have already collected some good advice.

    I've done all of the above at one time or another.

    Let us know which way you go with it and how it went.

  5. IdahoDon | Apr 05, 2008 06:22am | #17

    Check with a hardwood supplier and look through the utility grade oak.  Locally, we've had some great stuff for much less than $2/ board foot.  Shorter lengths are easy to cut from between the nasty knots.

     

     

    Beer was created so carpenters wouldn't rule the world.

    1. Ebe | Apr 06, 2008 04:15am | #18

      Thats good advice, I will check with them.

      Ebe

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