Sanya City, Hainan Province electric retractable telescopic stair staircase stairs wall body side-mounted telescopic retractable attic stair sections of 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 width 700mm * 1200mm accommodate normal floor height: 2400mm - 3800mm width luxury models hole requires a minimum width of 700mm * 900mm 650mm normal adaptation floor height: 2400mm - 3000mm Adaptation normal width 700mm * 1000mm floor height: 2400mm - 3200mm width 700mm * 1200mm accommodate normal 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 width 700mm * 1200mm accommodate normal floor height: 2400mm - 3400mm The main difference between ordinary and luxury loft retractable stairs of a different material on ordinary attic S curved staircase is the use of a single layer made of 1.5mm thick steel plate stamping; luxury loft ladder using two 1mm thick double-sided buckle strength steel stamping welded together in the S bend. 2, different ordinary attic stairs on 150 kg load bearing, luxury loft ladder load 200 kg. 3, comfort attic stair different ordinary single S bent at right angles, luxury loft ladder bent double S arc, smooth surface smooth, hand, the comfort of a luxury attic stairs better. When seven retractable attic stair installation requires the installation of the thickness of the wall of the attic stairs, floor thickness should be 170mm, connecting stairs bracket with the four corners of the screw, platen caught; frame mounting holes tighten a screw, cut off the excess wire head , covered with decorative panels, retractable stairs to check whether the various parts are loose, such as normal, can be used. If less than 170mm, should underlay board platen; if the floor particularly thick, The conditions permitting, use the following methods: floor length direction than in the longitudinal direction of the entrance stairs extend 200mm opening, extending sealed section below, do the middle floor first-order transition stepping; Note: design floor near the corner of the mouth, the edge of the hole to set aside more than 100mm from the wall to prevent the attic stairs bracket flange collision, the impact of the installation.