Portable Gantry Crane Adjustable Height Heavy Duty Steel Load Capacity (Lb.) 4000 Min I Beam Height (Ft.) 8'6 In. Max I Beam Height (Ft.) 14' Adjustable Increments (In.) 6 Usable I Beam Span Max (Ft.) 12'6 In. Inside Width 14' I Beam Height (In.) 7.87 I Beam Flange Width (In.) 4 For Use with Trolley 3MB61 3MB58 4Z465 Wheel Dia (In.) 8 Wheel Width (In.) 2 Non-Scuff Phenolic Casters Powder Coat Red Finish - Standards