: Thanks Kirk. Yes you're right it is 14'11". I was
: over-thinking it. I wish I'd made my strongback out of 3/4"
: plywood so that i could have just put my 1/2" end forms
: between the sides of the beam and screwed them in place rather
: than cutting the notches in the end forms to accomodate the
: strongback. It might have been a little more sturdy that way. I
: have all my parts made now, and I just need to assemble the
: frame. It would be nice to document this thing like you're
: doing, but I'm a techno idiot. I'll post some pictures of the
: finished product.

I enjoyed making up the strongback for my first (and current!) build, also a Guillemot from Nick's book. I learned quite a lot and for what it is worth didn't find it a problem to use a 4x2" rather than a purpose-built box beam.

http://ianjohnsonz.wordpress.com/ I wrote up a page about putting the strongback all together which might be helpful. Good luck!

Ian