Building strongback made. I'm feeling quite professional
I have made a strong back for the canoe build, using the technique set out in the book "Ultra Light Boatbuilding". "All" you have to do is bolt together two 1x6 Boards, force them apart in the middle with a spreader board, and job done. Ha. Forcing two strong boards apart when they are bolted together at the ends is a hell of a job. The recommendation is that it should be spread to 6" less than the width of the canoe. I couldn't get anywhere near that. It should be 22", I have got to about 16" and can't see getting any further. It involved a lot of hammering and swearing and the boards suddenly springing back together and trapping me. But I think this will work. It is quite stable. I placed two winding rods across it and they are absolutely parallel, which was a huge relief, because I didn't know what I would do if they weren't. I will probably make a pare of dedicated saw horses to support it at some stage.