Portable Gantry Crane Body Material Steel Maximum Lifting Capacity 4 000 lb I-Beam Flange Width 4 in I-Beam Height 8 in Height Adjustability Fixed Height Minimum Overall Height Not Applicable Maximum Overall Height 10.7 ft Minimum Height Under Beam Not Applicable Maximum Height Under Beam 10 ft Minimum Overall Span 8 ft Maximum Overall Span 8 ft Minimum Clear Span 9 ft Maximum Clear Span 7 ft Mobility Under Load Stationary Rotating Legs No Span Adjustability Fixed Span