Glen Martin RT-832 8' Roof Top Tower - Lightweight & Strong. Most Popular Model! Maximum Height: 8 Feet / Maximum Base Width: 32 Inches / Material: Heavy Duty 6061-T6 Aluminum. 1/8" x 2" x 2" Angle Stainless Steel Hardware: Nylon self locking nuts. Includes four brackets for rooftop mounting Wind Load Ability: 10.5 sq ft (85 mph) / 4.3 sq ft (150 mph) Maximum Mast Diameter: 2.375 inches / Maximum Mast Length: 8 feet / Maximum Balanced Load Weight: 125 lb center-balanced Rotator Plate: Fits most 4-bolt mounted rotators / Top-to-Rotor Distance: 34.75 inches / Weight: 32 pounds Additional items sold separately: mast, concrete bolts, roof bolts, mast clamps, thrust bearing, lightning protection. *Signature Required Upon Delivery*