Portable Gantry Crane Body Material Steel Maximum Lifting Capacity 6 000 lb I-Beam Flange Width 4.7 in I-Beam Height 10 in Height Adjustability Fixed Height Minimum Overall Height Not Applicable Maximum Overall Height 12.8 ft Minimum Height Under Beam Not Applicable Maximum Height Under Beam 12 ft Minimum Overall Span 7 ft Maximum Overall Span 11.5 ft Minimum Clear Span 9.3 ft Maximum Clear Span 9.3 ft Mobility Under Load Mobile Rotating Legs No Span Adjustability Adjustable Span