The HD-973P is built around rugged welded-steel construction, full-length aluminum platform decking, powerful hydraulic cylinders and heavy-duty 3/8-inch lifting cables. A wide base-frame design helps distribute load and supports installation on suitable residential or commercial concrete floors, with additional installation provisions available where required. Multi-position safety locks, automatic safety lock engagement, redundant anti-fall devices, independent backup slack-cable safety latches and a padded trip bar with limit switch help keep stored vehicles secure. Optional drive-thru ramps and 4,500-lb. air-hydraulic rolling jacks further expand how the HD-973P can be configured for storage and service.