Adjustable Gantry Crane Body Material Steel Maximum Lifting Capacity 4 000 lb I-Beam Flange Width 4 in I-Beam Height 8.1 in Height Adjustability Adjustable Height Minimum Overall Height 8.1 ft Maximum Overall Height 14.8 ft Minimum Height Under Beam 7.4 ft Maximum Height Under Beam 14.1 ft Minimum Overall Span 10 ft Maximum Overall Span 10 ft Minimum Clear Span 7.5 ft Maximum Clear Span 7.5 ft Mobility Under Load Stationary Rotating Legs No Span Adjustability Fixed Span