it all depends on how high you want your handle to stick out of your control panel. if your cp is 3/4 and then you add 1/4 of plexiglass or other such material, then your gonna lose an inch of your joysticks height. to counter this, most people router out the spot where they put their joystick, or just get 1/2 inch mdf...i haven't done either yet since i haven't gotten around to my cp, so this is just from a year of learning from reading, not experience.