Bulk storage and transport trucks boast a spacious interior, measuring 24" in height. The hinged top cover features a padlock hasp for added security. These versatile vehicles can be customized with either 2 or 2 rigid, 6" x 2" mold-on rubber or non-marking polyurethane casters. Sheet Steel Trucks are constructed with 14 gauge steel sides set within angle iron frames. In contrast, the Expanded Metal Trucks incorporate an angle iron frame with 3/4" expanded metal sides for enhanced visibility and airflow. FOB Shipping Point.