When properly installed, Modular-Office.com guard rail withstands a 10,000 lb load from breaking through at 4 mph. Use our guard rail for aisleways, building walls, computer control centers, conveyors, electrical equipment, freezer/cooler panels, heating/cooling equipment, in-plant offices, inventory areas, loading docks, mezzanines, modular offices and rack aisle ends. We guarantee the lowest price factory installations anywhere. If you want to self install, we provide the project management, instructions, engineering, drawings and telephone support to make your project a success! Modular-Office.com also carries guard rail parts. For more information, contact us by e-mail at sales@mcgillandcompany.com or by phone at 1-888-823-7274.