Ancra 43638-50 series e & a decking/shoring beam 85.7″ – 96.6″l series e & a decking/shoring beam has an outer tube made from high strength aluminum alloy and a patented flat latch steel end channels for superior strength to weight ratio. flat latch reduces damage during loading and unloading. attaches to series e or a track with an adjustment range of 85.7″ to 96.6″. wll of 2,200 lbs. For both decking and shoring applications.