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Metal stair treads grating steps for steel ladders
Steel steps / treads is not like cast iron steps, mild steel stair steps no need molds for production. It means cost saving and suitable for every shapes and dimensions. Stair treads also can be manufactured by serrated flat steel.
For adults, the minimum width of stair steps should be 240mm, and the comfortable width should be about 300mm. The gaps of the step should not be larger than 170mm, and the more comfortable height is about 150mm.
Practice has proved that comfortable steps when walking are generally height < width. Therefore, when choosing the aspect ratio, it is better to choose the smaller height for the two sizes of the same slope, because it is more labor-saving when walking compared to the step with larger height and width. But pay attention to the width,it should not be too small, preferably not less than 240mm, this can ensure that the center of gravity of the foot is near the center of the foot, and 90% of the heel is on the step.
The size of the steps should generally be adapted to the size of the human foot, and it is also related to the use of functions in different types of buildings. The step size includes height and width. The ratio of step height to width is the gradient of the stairs. Steps can have different values under the same slope, ladders shall have an appropriate range to make people feel comfortable when walking.
We provide 8 kinds of different steps, adding anti slip nosing to the steps, and steps connected with steel ladder by welding or bolting. as below:
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