Cotterman Metal Center Bracket for Vertical

Cotterman Dual Side Trak metal center bracket - Model L153-3. Center bracket (2 foot spacing). Calculate the distance from floor to the desired track mounting surface which should be no more than 4 feet below the top of the highest merchandise to be reached. Choose the number of steps and platform height closest to your calculation. The lower track is mounted 4 foot below the upper trolley track. Use the L15 brackets (2 ends per track run and 2 foot maximum center spacing) #78 track and joint dowels. Choose the tread width of the ladder desired, 16 inch or 24 inch and type of tread.