This invention relates to a method of making a dual panel composite truss having a pair of spaced apart prestressed concrete panels. The process includes assembling a truss frame, which includes connecting a plurality of steel posts and bent rod truss members and reinforcing rods and lifting and placing the assembled truss frame in a panel form for pouring a first prestressed concrete panel on one side of the truss frame. The truss frame with the first concrete panel is then stripped, lifted and placed on a turntable and turned to place the other side of the truss frame in the panel form for pouring a second concrete panel, to form a dual panel composite truss having parallel spaced prestressed concrete panels.