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Thread: Vinyl siding and soffit cutting jig

  1. #1
    Join Date
    Nov 2006

    Vinyl siding and soffit cutting jig

    I can't say you'd need this in your shop, but with all the people currently and in the future building shops I thought maybe some of you could use this jig to help cutting your vinyl siding, and soffits.

    This is something I started using about 12 years ago to rapidly cut vinyl siding, vinyl soffits and aluminum soffits for my houses and garages that I install siding on.

    It is relatively cheap and very easy to build. I originally started out using a 2x10-14' but it turns out to be too long of a jig for my current pickup and I use a 12' instead and I don't seem to miss the extra two foot all that much.

    To make it you start out with a 2x10, screw a 2x4 on the backside that is the same length as the 2x10. At some point towards the right end I attach a 2x6 cut on a 45 degree on both ends, the reason for the 45 angle is to screw some fasteners into the 2x10, then add a short 2x4 to match up to the back rail. Then I determine the rate of travel I need for my circular saw and cut 2 pieces of steel windbracing to act as guides for my circular saw. I square the guides to the back 2x4 and space them wide enough for the saw to travel back and forth smoothly. You will need to put a wood cutting blade in your saw for it's first pass through the 2x4, and set it to a depth to just cut into the 2x10.

    In some cases a extra width of 2x6 may be needed depending on width of material to be cut. I attach a broken tape to the back rail, having pre measured where the tape needs to be fastened, remember vinyl travels with heat and cold so this measurement does not have to be to the 1/64th inch to work....maybe within a 1/16

    For siding the tape works well to align the siding up to the dimension you want and cut with the circular saw which has a plywood blade in it on backwards...cuts better that way for me.

    For repetitive cuts on soffits I place a nail at the dimension I want and just start cutting away at the soffit stock.
    Attached Thumbnails Attached Thumbnails 100_2798.jpg   100_2799.jpg   100_2796.jpg   100_2797.jpg   100_2795.jpg  

    A very wise man once said.......
    "I'll take my chances with Misseurs Smith and Wesson. "

  2. #2
    Join Date
    Oct 2006
    ABQ NM
    Neat idea, Steve. I don't anticipate needing to cut siding in the near future, but the rail idea could be adapted into a box and used as essentially a stationary crosscut sled for panels or very wide boards. (I guess if it's not moving, it's not a sled. Maybe a crosscut trough?) Crosscut gantry?

    I'll definitely log this one into the "handy tricks" file.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

  3. #3
    Join Date
    Oct 2006
    Tokyo Japan
    Yep, that is a keeper, works good, and is dead cheap to build.

    Great post Steve!
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

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