4″ x 8″ Bent tubing mainframe with cross stringers with longitudinal reinforcement tongue area. (4) Lashing hooks at each side of trailer. 2.5″ x 2.5″ Reinforced tubing side frame with 3″ x 4″ uprights outside cargo area walls. 3/16″ Treadplate floor. Heavy duty #4 expanded metal lined towing area.
