How To Measure Garage Door Track RadiusHow To Measure Garage Door Track Radius March 1, 2023March 1, 2023| fkdtsoreangfkdtsoreang| 0 Comment | 1:58 pm At the center of the top section, measure the distance horizontally from the top hole of the door arm to one of the bottom holes of the trolley arm. To View MoreView More