Portable Gantry Crane Body Material Steel Maximum Lifting Capacity 10 000 lb I-Beam Flange Width 5.5 in I-Beam Height 15 in Height Adjustability Adjustable Height Minimum Overall Height 6.1 ft Maximum Overall Height 9 ft Minimum Height Under Beam 4.8 ft Maximum Height Under Beam 7.8 ft Minimum Overall Span 13 ft Maximum Overall Span 17.5 ft Minimum Clear Span 15.5 ft Maximum Clear Span 15.4 ft Mobility Under Load Mobile Rotating Legs Yes Span Adjustability Adjustable Span