Reply by Rougetet

Thanks Fred for the tips. I’m not sure a molding would do in the look I am after but will think about that more. The channels were not intended to be cut in the end grain but in the wide face about 1/2” into a 1 1/2” wide maple rail/stile (1/2”) thick. For the space balls I probably would need to have a 3/16” wide channel (recommended for .190” space balls) but then I am concerned that the 1/8” thick glass (only thickness available from Rockler) would be too loose. If I go that route I would probably need to add silicone caulking too as you suggest.

Again, thanks.

-- Roland, Texas