Hello,
Don't ask me how it happened, but somehow I've managed to get through adult life despite barely passing math A (yeah, I shouldn't have played truant, it was really foolish). But now I've hit a wall and I would need your help.
We are building a house with a ceiling height of 2950 mm on the ground floor and an intermediate floor of 345 mm. Now to my question: if we want a straight staircase, what minimum length would you say is needed for such a staircase to have a comfortable step?
Thanks in advance!
Don't ask me how it happened, but somehow I've managed to get through adult life despite barely passing math A (yeah, I shouldn't have played truant, it was really foolish). But now I've hit a wall and I would need your help.
We are building a house with a ceiling height of 2950 mm on the ground floor and an intermediate floor of 345 mm. Now to my question: if we want a straight staircase, what minimum length would you say is needed for such a staircase to have a comfortable step?
Thanks in advance!
Best answer
The depth of each step plus twice the height between the steps should be 63-65 cm
A comfortable height for the steps is 18 cm
The length of each step will therefore be 65-18-18=29 cm
The total height between the floors in your house is 330 cm
330/18= 18 steps
The length of the staircase will be 18×29=522 cm plus space to land above and below the staircase
Good luck!
A comfortable height for the steps is 18 cm
The length of each step will therefore be 65-18-18=29 cm
The total height between the floors in your house is 330 cm
330/18= 18 steps
The length of the staircase will be 18×29=522 cm plus space to land above and below the staircase
Good luck!
Good luck with the stairs!
It's not an exact science, so adjust the heights and depths of the steps according to reality.
It's not an exact science, so adjust the heights and depths of the steps according to reality.
But that doesn't quite add up, the step depth should be around 29 but the step depth is not the step length. The depth goes under the next step. Also, a staircase should neither be too flat nor too steep to be comfortable. Somewhere around 30-40 degrees usually works well. I think such a long, flat staircase will feel tiring to walk in.Åsa Lund said:
Here TS has a good tool to calculate their staircase.
http://www.zhitov.ru/en/lestnica/
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However, the staircase formula that Åsa refers to (depth + 2 times length...) is a rule of thumb for the stairs to be comfortable to walk on. The step depth in this case of 29 cm is then the "geometric" length that matches how one walks. Letting a step protrude over or under another for aesthetic reasons, depending on how you see it, does not affect the step depth. But it does affect how deep the step should be when you manufacture it.
So if the staircase formula concludes a step depth of 29 cm, but you want a 20 mm overlap, you have to manufacture steps that are 31 cm deep.
The staircase formula is about the relationship between how high you lift your foot versus how far you move your foot forward when walking the stairs. The formula provides an empirically comfortable gait.
So if the staircase formula concludes a step depth of 29 cm, but you want a 20 mm overlap, you have to manufacture steps that are 31 cm deep.
The staircase formula is about the relationship between how high you lift your foot versus how far you move your foot forward when walking the stairs. The formula provides an empirically comfortable gait.