7' 3 inch To 7' 7 inch , 11 Gauge, M Plate, 3 inch Adjustable Column, 3.0 inch O.D., Swivel Plate On Screw End, M Plate On Tube End, Completely Assembled No Loose Parts, Wood Or Steel Beam Mount, Finished With Corrosion Resistant Powder Coating That Exceeds ASTM-B117-85, 2006 ICC & IRC Approved, Max Ext Load 12,432 LBS.