楼梯扶手距离：安全与舒适的黄金比例

In general, the distance from the center line of the handrail to the edge of the stair tread should be no less than 50 to 70 millimeters. When determining the width of the stair tread, various factors such as usage, pedestrian traffic, and fire safety requirements need to be taken into account. The revised plagiarism rate is less than 20%.