What is a round staircase? What are the required dimensions for round stairs?

One of the main components of the building is the round staircase, the design of which requires background information.

Maybe you have thought about the required dimensions for a round staircase?

In this article, we will try to familiarize you with the dimensions required in the building to implement the round staircase.

What are the required dimensions for round stairs?

One of the applications of round stairs in the building is the minimum possible space requirement.

So that by providing a space of 120 x 120 cm, the smallest round staircase can be implemented.

According to this space, the length of the stairs is 55 cm, which is suitable for one person.

Dimensions of modern round stairs

The round staircase is a decorative and modern structure in the building, which has many uses in interior decoration.

As a curved and spiral structure, the stair has a great role in modernizing the interior decoration of the house.

To implement a modern round staircase in the building, it is necessary that this structure has enough space for implementation and rotation.

The most suitable dimensions are 200 x 400 cm.

In this way, it is possible to implement a spiral staircase structure with 180 degree rotation (semicircle), which is the most beautiful type of round staircase rotation.

The height of round stairs

The standard height of each step in a round staircase is 18 cm and the bottom of the step is 30 to 33 cm.

The number of steps placed in each part of the round staircase should be at least 6 and at most 15.

If the number of stairs is more than 12, it is better to install a footrest among them.

ankle width

The width of the tread in round stairs is 2 times the width of the stairs and its length is almost the same as the width of the stairs.

The shape of the footrest is also different according to the design of the round stairs.

For example, in the U design round staircase, the footrest is usually rectangular or square.

In straight round stairs, the width of the tread is equal to the width of the step and its length is almost equal to two steps.

In order to increase the safety and security of your round staircase, be sure to use a railing, both sides of the round staircase must have a railing.

Fences are designed in both wood and metal form.

The height of the fence is usually around 80 to 90 cm.

According to their different designs, round stairs have different structural settings and sizes.

For example, the structural configuration of a spiral staircase is different from a straight staircase.

the floor of the stairs

The floor of the stairs is subject to 2 factors:

The length of the sole of the foot

The length of the sole of a normal person's foot is about 30 cm.

In this case, to make it easy to walk on the stairs, the bottom of the stairs should be about 30 cm, which will be about 32 cm in total, considering the 2 cm of the nose of the stairs.

stride length

The length of a normal person's step is about 63-65 cm.

In order to be able to walk the stairs one after another without stopping and easily and with a normal step, the sum must be twice the height plus the bottom of the stairs, a number between 63 and 65 cm.

h = step height

b = step floor

65 to 63 = b + h2

If the number of stairs in a row is about 8 to 12, the floor of the stairs cannot be more than 32 to 33.

Because if the floor of the stairs is wider than this value, the user will unconsciously place his step a little further back on the next step.

As a result, on the eighth or ninth step, his toe is on the edge of the step and he may lose his balance and lean forward.

But in the case of the stairs in front of the building, which usually have 3 or 4 stairs, you can also use a wider floor.

Approximate space requirement of each round step

1- Round step around the pipe

In this type of stairs, it is better than the outer radius should not be less than 70 cm.

The approximate weight of this staircase is approximately 75 kg for a staircase with an outer radius of 90 cm and a central tube of 10 cm.

The dimensions of this round staircase are at least 140x140 square.

2- Round step with two sheet axes

In the implementation of this round staircase, the inner radius should not be less than 35 cm.

The approximate weight of this staircase for the outer radius of 200 and the inner radius of 90 cm is approximately 150 kg per meter of height.

The dimensions of the case are also suitable for the implementation of round stairs with two axes of a 300x300 square sheet or a 200x400 cm rectangle.

3- Screw step under the axis or middle axis

This round staircase is one of the special staircases that does not have a limit on the inner radius.

This type of stairs can be implemented in the smallest spaces.

But because a round staircase must have a proper footrest and a proper footrest requires having the right radius and the right space.

Therefore, the required dimensions of the stairs below the axis should be about a 250x250 square or more.

But there is no problem with the dimensions in places where there is limited space.

The approximate weight of each meter of the height of the stairs below the axis is 150 kg.

4- The round stairs of the two axes of the box

It is better that the inner radius of this step is not less than 40 cm.

The required dimensions of the box two-axis round staircase, according to its use and use, as well as the need for a large radius, the space that should be considered for this staircase is a rectangular space of 250 x 500 cm and a square space of 400 x 400 cm.

The weight of each meter of chassis height is approximately 200 kg.

5- Cantilever single-axis screw step

This beautiful hanging round staircase is one of the stairs that has no space limitations and can be implemented in small spaces.

The required dimensions for this staircase are according to the interior design.

The inner radius of this staircase should not be less than 80 cm.

6- The screw step of the central tube is cut

The space required for this staircase is approximately 200 x 200 cm.

This staircase is used for small spaces.

The weight of this staircase is 110 kg per meter of height.

The inner radius of this staircase should not be less than 70 cm and the required dimensions of this staircase should not be large.

This step is non-decorative and has a high weight.