Tomcat 30″ x 20.5″ x 10′ Heavy Duty Truss. 50″ x 40″ Truss Base Plate With Holes. 50″ x 40″ Truss Base Plate With Truss Plate Position Options. 50″ x 40″ Truss Base Plate With Truss Plate Position Hole Options. 50″ x 40″ Truss Base Plate With 30″ x 20.5″ x 1′ Truss Example. 50″ x 40″ Truss Base Plate With Plan Dims. 50″ x 40″ Truss Base Plate With Side Dims.