(Continued….) COMMERCIAL GRAB BAR FASTENING SYSTEM - I NSTALLATION G UIDE Make sure that there is at least 1.5” away from the edge of the stud. If concerned, drill a pilot hole and insert a piece of wire in the shape of an “L” - twirl the wire to make sure that there is nothing in the way. Drill a 1-1/4” hole in the wall precisely at the center point where each grab bar flange will align. Clean wall surface.