Reply by Fred Hargis

Another vote for the 1/2”...but I’m thinking (if I understand it correctly) the choice between that 1/2” groove or a 1/4” groove isn’t really that big a consideration (the 1/4” rabbet would have just about the same strength I think). But it would be easier to just make a 1/2” groove. Is there a reason to not do it that way? BTW, skip that floating panel/bottom concept…glue those suckers in!

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)