Portable Gantry Crane, Body Material Steel, Maximum Lifting Capacity 4,000 lb, I-Beam Flange Width 5 in, I-Beam Height 12 in, Height Adjustability Adjustable Height, Minimum Overall Height 6.3 ft, Maximum Overall Height 9 ft, Minimum Height Under Beam 75 in, Maximum Height Under Beam 9 ft, Minimum Overall Span 21.3 ft, Maximum Overall Span 21.3 ft, Minimum Clear Span 19.7 ft, Maximum Clear Span 19.6 ft, Mobility Under Load Mobile, Rotating Legs Yes, Span Adjustability Fixed Span