8 ft Angle Iron
8 ft Angle Iron can be cut to length as needed, to secure the rear garage door track to the ceiling, or to mount the automatic garage door opener unit to the ceiling. Usually, it is cut so that one piece can span between two rafters, and is screwed in with lag screws. Once in place, one or two separate pieces are cut to hang down at the appropriate length to attach to the track, or garage door motor. These would be attached by using bolts both above and below. Usually, two lengths are going to be sufficient to perform either task. COST: $15 per length.