Specifications: Material: Aluminum Capacity: 6000 lbs/2722 kg Capacity: 3000 lbs/1361 kg Each Overall Size: 72 × 15 in/1830 × 380 mm Thickness: 2.5 in/62.5 mm Load Height: 12~36 in/305~914 mm Description: Max. 6000 Lbs Load Bearing: Item Size: 72'' x 15''. The single ramp can hold up to 3000 lbs (6000 lbs for two), so it works well for kinds of vehicles. Please use within a secure load height range 12''~36'' to increase longevity. All-Aluminum Structure: Thickness: 2.5''. Made of high-strength and lightweight aluminum alloy, our load ramp has great resistance to rust and deformation for long periods of outdoor use. .