Building a 14 ft skiff

Discussion in 'All Things Boats & Boating' started by bluffmatic, Jun 15, 2009.

  1. bluffmatic

    bluffmatic Guest

    I tried to make a but joint, and succeeded but then i made a half lap joint and it was alot nicer. is the half lap joint good enough ? It seems strong and looks alot better. This is my first boat and I really want to make it nice tell me what you think.
     
  2. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    What do you mean by half lap, and where is the joint at?
     
  3. bluffmatic

    bluffmatic Guest

    instead of a scarf on my plywood i was going to router half the sheat of plywood three inches wide on both pieces then glue them together with fiberglass epoxy
     
  4. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    It depends on how the pieces will be loaded, but generally the half lap creates a "stress riser" at the most vulnerable portion of the joint. Scarfs are used to maintain the integrity of the joined pieces, even under load.

    Now you can do a "stepped scarf" which is much better at eliminating stress risers, but they need several steps to be effective.

    In short, if the joined piece needs to bend, you should scarf, as a stress riser will likely snap the joint right in the middle after a while. If the piece isn't highly loaded, you'll probably be okay with a half lap.

    Of course it would be a lot easier if we knew what you were doing.
     

  5. bluffmatic

    bluffmatic Guest

    a fourteen ft power skiff from cmd boats

    after numerous tries in the garage i found out that a scarf is the only way to go. the plans call for a scarf or a butt joint. I will go with a scarf.
     
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