Vibration-isolation workstation accessories reportedly permit customization without interference to vibration isolation. Shelving holds heavy loads; is isolated from tabletop. Styles include keyboard shelves, sliding shelves, and overhead equipment shelves. Monitor supports (corner-mount, LCD, double, or LCD double), electrical outlet strips, front and side guard rails, padded armrests, height extensions (integral or field-retrofit), braces, seismic restraints, kinematic feet, and retractable casters are available. Faraday Cages to shield sensitive devices from electrical and magnetic interference are also offered; built of high-density, 16-mesh copper screen; can be customized with doors, shelves, monitor stands, electrical outlet strips, lighting, etc. Provide attenuation of up to 100 dB below 500 kHz, 60 dB below 50 MHz, and 20 dB below 5 GHz.