I am at the last cuts for a shelf which my wife asked for. The whole thing is made out of cherry. The shelf top is 7/8 inch thick.
The supporting brackets which are mounted to the wall studs are planned to have a pin running perpendicular to the wall which the shelf (having matching dovetail slots) will slide onto up to the wall.
The supporting brackets are not as wide as the top shelf, so the sliding dovetails will be stopped at about 2/3 of the width of the shelf.
So my real question, after all the setup information, is what is a safe thickness for the dovetail slots in the shelf? My gut feeling was about half of the thickness of the total shelf (so 7/16 of an inch or so).
I am sure there is a lot of slack either way but just wanted to make sure, or see if anyone had a good rule of thumb for this sort of thing.