Elite material handling provides dock doors constructed of crush-resistant polyurethane with metal walls and exclusive interlocking joints. These dock doors are available with panels to form super-strong "sandwich" providing strength and durability. These dock doors are available with salient features like hardware for durability of door, as components that are not robust enough can become the source of high repair and maintenance costs and program of planned preventive maintenance ensure optimal operation of doors and prevent service downtime for many years. Some of the technical specifications of these dock doors include g-1000 pre-painted aluminium; 0.023" [0.60 mm] thick; baked-on polyester based paint; 1 ¾" [45 mm] door; wood grain finish on both sides of the door; r-16 [rsi 2.8] thermal resistance rating; 1.5 lb/sq.Ft [7.3 kg/m2] weights; g-2000/3000: 23/23 gauge hot-galvanized steel for g-200b 20/23 gauge for the g-3000; baked-on polyester based paint; 1 ¾" [45 mm] door; smooth finish on both sides of the door; white colour and can be repainted; and r-16 [rs12.8] thermal resistance rating.