First, the orientation and appearance of the stair handrail device. The planning of the stairs in the home is particularly important for the overall decoration. We should carefully consider the size and height of the house space occupied by the stairs and the exit and entrance of the stairs. Generally speaking, most of the stairs are installed in specially planned stairwells, and some are placed at the corners of the house, which can effectively use the space of the house without affecting the whole decoration planning. In addition, the planning of the entrance and exit shall be based on the principle of the owner's convenience and the shortest journey.