: I used bungees to hold everything together while the epoxy set (didn't need
: any more clamping pressure than that for the redwood I used). I went back
: and doweled the joints at the gunwales though - if the glue joint fails at
: least the plywood frames won't move...

: Doug fir, pine, etc. would likely need more clamping pressure than bungees
: can provide.

: On my first "Yost" style frame I used screws to hold everything in
: place, which was probably a bit easier than bungees. I didn't even use a
: strong back for that one!

The only problem I have using bungies for gluing clamps is it's hard to get just enough tension on the stringers to hold them in place and not so much to deflect them out of plane.

Nice thing about edge grain plywood is it's a very good surface for epoxy if you don't try for a smooth surface where the attachment to the stringers is.

Doweling the joints certainly won't hurt.

Screws into edge grain plywood to me is a bad idea. Tends to act as a wedge to drive the plies apart.

Bill H.