HL2451 Features: * Heavy gauge roll formed channels and angles welded together to form a rigid one piece frame * Double tier * Starter unit * Knock down * Angle framed 16 gauge flattened expanded metal door * Ergonomic formed steel handle * 13 Gauge hinges welded to both the door and the frame * 7 Knuckle hinges * Single point thru handle latching * Cold rolled steel flattened expanded metal * Frames include an upper transom to allow for field cutting around overhead obstructions * Doors and sides include a welded angle frame with 0.5" 16 gauge flattened expanded metal panels * Made in the USA Color/Finish: * Sport silver color Warranty: * Manufacturer provides 2 years warranty