Planking the Squirt

Outboard designs up to 14'

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Planking the Squirt

Post by GiveATry » Wed Sep 02, 2015 7:08 am

Need some advice. I am ready to apply planking to the sides and bottom of the Squirt. Have read boat building with plywood and so have some ideas on how this works.

Bought 1/4" Okoume plywood in 8 ft sheets. Am planning to use a butt joint on the sides and bottom of the boat to get the full 10 ft length of the boat covered. I can picture butting the sheets on a frame member; however the book says that attaching planking to frames is not advised.

What have others done in this regard - especially on the sides.

Thank you!

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Re: Planking the Squirt

Post by gap998 » Wed Sep 02, 2015 7:33 am

Butt joints should be done on a "flat" section BETWEEN frames - Check out Josh Burkes's "Building the Zip" videos on Youtube; I think it shows it on one of the clips.

You can see the position on this pic: -


Planning a whole fleet, but starting with a Zip...I think.

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Re: Planking the Squirt

Post by BayouBengal » Wed Sep 02, 2015 7:17 pm

You don't want to try and seam it like nailing paneling to wall studs, this won't work. You need to use an extended plywood joint to make the butt joint.

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Re: Planking the Squirt

Post by DanielS » Thu Sep 03, 2015 2:21 am

Hi GivATry,

I would personally recommend giving scarf joints a try.
I was initially nervous about the difficulty but I am very glad I did them because the results are great!

Refer my blog.


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Re: Planking the Squirt

Post by DanielS » Thu Sep 03, 2015 2:29 am

Hi GiveATry,

I would not recommend butt jointing the plywood on the frames.
You need to make the butt joint between frame 1 and frame 2. The butt joint should be close to frame 1 but certainly not on it.

I would recommending giving scarf joints a try. With some careful work I got really great results and I wouldn't hesitate to do more scarf jointing.
Please see my blog:

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Re: Planking the Squirt

Post by BarnacleMike » Thu Sep 03, 2015 3:03 am

Here's a photo showing the butt joint construction on the side of the hull.


There is a little more detail on the rest of the process in my blog post here: ... lmost.html

You'll want the butt block to extend 3-4 inches on either side of the joint. I hope this is helpful!

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