How do I replace a broken hinge or roller on my garage door? Hinge #1 replaces hinge between 1st and 2nd sections on left & right side of door & all center positions Width: 3″ overall & Height: 7 3/8″ high 18 Gauge Galvanized Steel Roller tube accepts a standard 7/16″ outer diameter stem roller This #1 Hinge is for use with residential sectional garage doors Should have #1 printed on the existing hinge Used by most garage door manufacturers