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biscuit join 2x4's

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  • biscuit join 2x4's

    I have to construct a frame using 2x4
    Would joining the pieces using biscuit good enough?

    - Jimmy

  • #2
    What this here frame got to hold up to, Jimmy? Biscuits could keep it from falling apart under it's own weight, but might not be adequate for other purposes.

    Dave

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    • #3
      Would a lap joint or mortice and tenon be better for a heavier duty application?

      I basically want to make a rigid rectangular frame.

      - Jimmy

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      • #4
        Jimmy---you have to remember 2x4s are pretty much for rough work, so agree with Dr. Buckle---I think you'd find lap joint, with glue and screws your best bet. Made a couple of gates for the yard that way and they've held up great.
        Dave

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        • #5
          Not to mention that 2x4s are not the most stable mateial in the world and are often not very dry.

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          • #6
            Biscuits are great for aligning face surfaces. My opinion is they dont add to the strength of a joint. Better with mortise and tenon, or a half lap joint. Depends on the application and what its for. Just MHO
            <a href=\"http://www.woodshopphotos.com/gallery/Ralphs-workshop\" target=\"_blank\">www.woodshopphotos.com/gallery/Ralphs-workshop</a><br /><br />I can fix anything......where\'s the duct tape ?? :-)

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            • #7
              If you're building a rectangular frame, it not only needs to support tension and compression, but just as importantly, it should support torsion, aka torque, aka racking forces. Adding a diagonal member across the rectangle will all but eliminate racking, whereas the nicest joints at the rectangle corners will do very little in comparison. Adding a panel to the face of the rectangle can provide support similar to a diagonal member.

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              • #8
                Thanks for all the input. I am planning to add a board to the frame to increase the stability.
                I will post pictures when I am done w/ this project.

                -Jimmy

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                • #9
                  pocket holes are quick and easy, and make strong joints.

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                  • #10
                    I use a Kreg jig and love it. It can pocket hole 1/2-1 1/2 " wood. Fast,easy,accurate and stong. I use kiln dried 2x4 and am very selective at the store for which ones to buy. That can take a while. By the way I almost never use my biscuit jointer anymore, Kreg claims that their joint is as strong as a mortise. I am inclined to believe it.

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