Product Details
Low Ceiling Clearance*Overhead Door Holder - #1687 Drop Plate:*
Top Jamb:For use where the ceiling clearance is between1-3/4" and 2-5/8" (44mm and 67mm). Or for use where anoverhead door holder prevents normal top jamb mounting.This places the centerline of the arm mounting screws at2-1/8" (54mm) from the top of door.