Beam BumpersBeam Bumpers Wherever there's a low clearance area passageway, rack beam, overhead pipes, door overhangs that presents a chance for someone to run into an immovable object, that's a place for Beam Bumpers. For example, retrieving materials or boxes from rack shelves can be dangerous if order pickers misjudge the clearance between their head and the rack beam. That can lead to one of the most common types of injuries for warehouse workers head injury.