Specifications include, but are not limited to: DOOR: Rolling Steel Door is to be 20 gauge. Meet or exceed Dade County Specifications of 50PSF impact rating or 150 mph wind speed rating. Spring Cycle 50,000. Heavy Duty Head Plate Bearings. Factory wrapped curtain on the barrel. GUIDES: Face Mounted E-guides. Minimum ¼” thickness, end plates mounted inside of door guides. Door guides are to be bolted together. CURTAIN / DOORS: Gray in color. Factory wrapped curtain on barrel. SLATS: 20 gauge curved slat 3”. BOTTOM BAR: Double angle steel. Black with weather seal. MOTORS / OPERATORS: Lift-Master #GH203L5 2Hp 480/230/208 3ph Electric operator with Nema 1 Push Button Control Station. LiftMaster #08-9098 Mounting Bracket. Right Hand Drive. To include standard #50 drive chain, slow speed, 12inch gear on barrel. DOOR DIMENSIONS: Approx. 20’ 3” Wide X 16’ Height