Dock equipment supports the loading and unloading of goods from vehicle trailers in loading docks, yards, and similar areas in industrial facilities. Wheel chocks, stabilizing jacks, loading ramps, and dock levelers stabilize and provide access to trailers and work areas. Guardrails, handrails, barricades, gates, curtain walls, and doors keep work areas secure and control traffic around vehicles or equipment. Bumpers, surface protectors, and clearance bars protect vehicles and facility structures from impacts and other hazards.