I am looking at 5/8 with laminate on one side and "backerboard" on the other. These are to me professionally applied and cut on a CNC machine at a local millworks. I've never seen backerboard, so I am not sure what to do.
T-Molding comes, obviously, in 5/8" and 3/4" widths. I was thinking 3/4", but was hoping for some confirmation.
I should also use a 1/6" slot cutter, right?