Portable Gantry Crane Body Material Steel Maximum Lifting Capacity 6 000 lb I-Beam Flange Width 7 in I-Beam Height 12 in Height Adjustability Fixed Height Minimum Overall Height Not Applicable Maximum Overall Height 13 ft Minimum Height Under Beam Not Applicable Maximum Height Under Beam 12 ft Minimum Overall Span 12 ft Maximum Overall Span 12 ft Minimum Clear Span 11 ft Maximum Clear Span 10.5 ft Mobility Under Load Stationary Rotating Legs No Span Adjustability Fixed Span