Yes they can when properly equipped. Exterior lift tables can be ordered with a steel checker plate deck for improved pedestrian traction. In addition protective guard rails, gates and access chains are also readily available for operator safety. The main concern in an outdoor application is protecting the electric hydraulic power unit from the elements. In almost all cases the electric hydraulic power unit is located inside the building away from the elements; the hydraulic hoses are routed to the lift table through underground conduit. If the application calls for an external lift table it is important that you first do your research. Describe the application and goals and ensure that your supplier has experience with lift tables installed in the elements to addresses all operational and safety considerations. Contact a Pentalift Sales Representative for more information.