A B Base Length: 36 1/8" , Base Width: 39" , Beam Length: 77" , Bolt Type: Anchor , Depth: 39" , Feet Adjustability: 1" , Feet Type: Adjustable , Flange Width: 2" , Includes: (4) Adjustable Feet (4) Anchor Bolts , Length: 9" , Material: Steel , Max. Clearance: 35 5/8" , Max. Height: 78 4/9" , Min. Clearance: 30 1/3" , Number of Bolts: 4 , Number of Feets: 4 , Portable Height: 78 7/16" , Portable Length: 39" , Uniform Capacity Per Double Hook: 150 lbs. , Uniform Capacity Portable: 1200 lbs. , Uniform Capacity Stationary: 1200 lbs. , Usable Beam Length: 65 4/5" , Wheel Diameter: 3" , Wheel Material: Poly on Poly , Wheel Type: Swivel with Total Lock , Wheel Width: 1 1/4"