What is the appropriate step of stairs and the height of each step?

The step height of public stairs is: 16-17mm. According to this standard, common stairs with cement base at home have a comfortable height of about 16mm.

The stair tread is generally 16-18cm for families and 12-14cm for public places, with a width of about 25.

stair tread size design specifications include the specifications of treads and risers. The size requirements of stair treads are suitable for the size of people's soles. It is more comfortable to walk on the stairs. Then the width of indoor stair tread size is generally 28 cm, which is the most comfortable. The height of the riser is generally 18 cm, which is the most comfortable. :

1. Home improvement stairs should pay attention to safety, on the other hand, they should pay attention to economy.

The economy includes the economy of funds and the economy of space. Generally, the stair tread height of home improvement is designed between 18mm-2mm, and only the stair tread height of public places is designed between 13mm-16mm.

Secondly, the step center distance, that is, the depth, is generally designed to be between 23 mm and 25 mm, and the minimum depth should not be less than 22 mm. The step depth is designed to be 3mm, and it is not enough to walk in one step, which is very tiring. ?

2. Choice of step width. Generally, the step width of home improvement stairs is 8mm, which can be appropriately increased according to the hole space.

(1) The step height is 192.86mm, the number of steps is 13, and you walk up for 14 steps (the last step goes directly to the second floor, which is the "down step" in the stair row). ?

(2) There are five standard steps on the side extending 195mm, with the center distance of the steps being 23mm, then an 8mm platform (or two large triangles or two small triangles with a center fish head) is used as a 9-degree turn, and seven standard steps are connected below, with the center distance being 23 mm..

The maximum height and the minimum width of stair treads in other houses are .18 and .25

The maximum height and the minimum width of stair treads in kindergartens and primary schools are .15 and .26

Stairs in cinemas, theaters, gymnasiums, shopping malls, hospitals and sanatoriums are .16 and .28

Stairs in other buildings are .17 and .17 respectively.