BLUFF Steel Yard Ramps help load and unload freight at facilities without docks or forktrucks. Self-contained, double action hydraulic pump wheel assembly positions portable yard ramp at trailers or dock edges. Supports 16,000- or 20,000-lb. capacities. Open serrated steel grating provides excellent traction while preventing buildup of snow, water and debris. Durable steel channel beam understructure. Approach lip provides a bump-free transition. For truck-to-ground and/or dock-to-ground choose a 36'L yard ramp (30' ramp with 6' level off) for a safe, smooth transition. Choose a 30'L model for quick loading from dock to ground. Made in USA. NOTE: Not recommended for docks or trailers lower than 40".BLUFF Yard Ramps are not available online. Call a Certified Product Specialist to Order.