The main material used high strength steel door using special insulation board, the surface electrostatic spray, the stability of the ultimate retractable stairs, price, beautiful and practical, easy to operate, easy to install, is an alternative fixed stairs, saving the best choice for indoor space . First, retractable attic stairs Mainly used in small attic space, shops and so on, up and down the main channel connection. Second, the attic stairs telescopic type now I introduced the attic stairs stairs manual type, electric type two, color component black, white, orange, blue and white combination of four. Wherein the manual type Common type and luxury, luxury more than the ordinary type handrail ,, electric type using domestic motor, wireless remote control, automatic folding and Shoulong. Three-story attic stairs and space to do what is required: 1. floor height 2400mm-3800mm can be. 2. Open staircases basic size requirements: 1200mm - 1800mm, floor size of about 1300mm, maximum load 200Kg, pedal length 360mm, pedal wide 105mm, 250mm height per step four retractable attic stairs stairs bearing weight of the total loading capacity of 200kg, absolutely meet the demand, materials are using high-quality steel, durable. Five sections telescopic attic stairs to the entrance requirements: 1, manually type retractable attic stairs: ordinary paragraph hole requires a minimum width of 600mm to adapt to the normal width 700mm * 900mm floor height: 2400mm - 3000mm width 700mm * 1000mm accommodate normal floor height: 2400mm --3200mm normal width 700mm * 1200mm adapt to floor height: 2400mm - 3800mm width luxury models hole requires a minimum width of 700mm * 900mm 650mm normal adaptation floor height: 2400mm - 3000mm width 700mm * 1000mm accommodate normal floor height: 2400mm - 3200mm normal width 700mm * 1200mm adaptation floor height: 2400mm - 3800mm 2, electric type retractable attic stairs: luxury models hole requires a minimum width of 670mm to adapt to the normal width 700mm * 900mm floor height: 2400mm - 2800mm width 700mm * 1000mm accommodate normal floor height: 2400mm --3000mm normal width 700mm * 1200mm adapt to floor height: 2400mm - 3400mm