Portable Gantry Crane Body Material Steel Maximum Lifting Capacity 16 000 lb I-Beam Flange Width 6 in I-Beam Height 18 in Height Adjustability Adjustable Height Minimum Overall Height 9 ft Maximum Overall Height 14 ft Minimum Height Under Beam 7.5 ft Maximum Height Under Beam 12.5 ft Minimum Overall Span Not Applicable Maximum Overall Span 11.5 ft Minimum Clear Span 8.6 ft Maximum Clear Span 8.7 ft Mobility Under Load Mobile Rotating Legs Yes Span Adjustability Fixed Span