"DJ Delorie" wrote:

How deep though? Or is it non-critical?

I'd consider it non critical.

Both joints are in shear so depth of cut isn't critical.

Rabbets are "shared" joints so 50% from each member.

3/16"-1/4" deep dado cuts for 3/4" wide dado cuts seems to work for
Norm, so what the heck, it has worked for me, especially if you have
flat bottom cuts.

Have fun.

BTW, might want to consider a sandwich top consisting of 1/4" ply
skins and 1" foam core.

Light weight and stiff as a bull in fly time.G


Lew