Wooden Boat People

By McKenzieDriftBoat.com

Loving my 13ft Mackinaw Driftboat project

First time boat builder and proud of it! I'm currently crafting a 13 ft Mackinaw that's going great. So far I've finished framing the hull by means of creating a steambox that allowed me to bend the chine log and shear clamp easily. Fairing the frame is coming along. Reading different articles I had a question about screwing down the marine plywood. Should I Fasten it to just the the chine log and sheer clamp or include the in-between framing too? I'd appreciate any advice. ~newbie

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Permalink Reply by Mike Thomas on April 6, 2016 at 5:47am

Looks good. I`m new too this myself. I used screws to the frames on the sides, 3" spacing. I used 5200 caulk on the bottom frames and chine log and less screws on the bottom (I think I went like 8" or so) One thing you want to do is watch and plan, and map out the screws that you put into the chine log sides and bottom.

I made it so that those screws were a inch or 2 apart (side and bottom) and left a decent space in between. The reason for that is for securing the chine cap in the end, knowing where all the screws are as to not hit any with the chine cap screws. Going natural made the sides easy as I could see them. But the bottom with the glass and graphite, could not see them. I mapped them out on papaer before I graphited the bottom.

This simple gauge worked great to set the chine screws in the bottom with the plywood hanging over the corner. Also watch you screw lengths and angle to not bust through anything. I used some tape around the bottom. The line is my side screw, the B is my bottom screw into the chine log. Hope this helps a little