"DJ Delorie" wrote in message
...

Still working on my new desk: http://www.delorie.com/wood/desk/

Today's question is about supporting the center section of the top.
The primary support will be along the seam, held together with draw
bolts (although there's an arch across the widest part to help reduce
sagging). I want something along the seam that will align the
sections vertically as well as support the center section. My
original idea was just biscuits, but now I'm thinking floating tenons
would be better. Comments? Ideas? Suggestions?

DJ,

I built some "L" shaped craft benches a couple of years back that I
aligned the two sections using two #20 biscuits on each seam. No glue,
assembled them dry so when / if they have to take things apart, they
can. I used two 1/2" diameter draw bolts on each seam to hold things
together. These benches have taken a beating and the seams haven't
budged.

Other ideas will certainly work but "simple" usually works better than
some "over-engineered" ideas.

Bob S.