Calculation of stair steps - why is this important?
The ladder is not only functional, but also a decorative part of the interior, so it needs to be properly equiped. In addition, it is very interesting and important element of the house, even if not used for its intended purpose. Regardless of what material will be made of its components, with incorrect measurements, the ladder does not work.
In any case, you will have to apply formulas to determine the exact size. The peculiarity of the construction is that the staircase should look right and be functional. It will be difficult to measure if all of its elements are combined from different materials. Depending on how correctly the project is designed and the ladder is made, the safety of using it will also depend.
Calculation of steps of the ladder is made in order for it to be convenient to move, otherwise you can fall and get injured. It is impossible that the steps were located at the wrong angle or sagged. It is best to consult with professional builders before construction. However, you can do everything by yourself.
Step ladder dimensions - basic calculation rules
All elements on the same ladder march must have the same height, step width and step width. Everything should be balanced. There are standard sizes for the elements:
- height steps - from 14 to 17 cm;
- element width - from 34 to 37 cm;
- protrusion - 2-4 cm
To calculate the height, you can apply the formula: 2a + b = 620/640 mm or a + b = 450 / 470mm, where a is the height, b is the width of the tread. These formulas calculate the average size, acceptable for almost every person. It should be borne in mind, the height depends not only on the parameters of the human step, but also on the overall height of the floor.
All calculations must comply with the following rules:
- The higher the step height, the greater its width;
- steps should be mounted at an angle of 90 degrees to each other;
- the width of the ladder step should be at least 25 cm, but it depends on the length of the elements.
The greater the width of the tread, the safer the staircase is.
The width of the tread is calculated as follows: an adult puts his foot in such a way that the sock hangs over the front of the tread. In case the sock hangs slightly, the element is safe. The risers should not be more than 20 cm high.
The height, the protrusion, the width of the ladder step are calculated, what else should I know?
The distance between the steps of the ladder should not be too small, however a large gap between the elements will be threatened by the fact that a person simply falls through the ladder. It is understandable, the width of the stairs should be such that it can simultaneously pass two adults.
The width of the tread and the height of the element should be equal to the average length of the human step. In each individual case, the width is calculated so that the foot of all people living in the house can fully lean on the stage.
However, during the manufacture of the product, errors must not be allowed. First of all, you can make a mistake in the tilt angle of the staircase. If it is more than 50 degrees, then the descent will be dangerous. The most optimal angle should be no more than 45 degrees.
You can also make a mistake in calculating the basic dimensions of the steps( height and width), which will lead to incorrect staircase design. And the most important rule: to count elements it is necessary still at a stage of designing of the house. In this case, you are more likely to build a truly correct product.