Prominent staircase with different step heights

  • Erstellt am 2018-03-22 11:37:10

Harun54

2018-03-22 11:37:10
  • #1
Hello dear homeowners and everyone who wants to become one,

we are at the point in our house construction where we are now starting the interior work. We have concrete stairs and want to equip them with 4 cm high oak steps. The steps will be cut and installed by the carpenter. However, I now have the problem that the construction height on the upper floor and the top floor is different. This difference was apparently not taken into account when building the stairs from the upper floor to the top floor. Thus, I have a height of about 17 cm for the first 15 steps and the top last step has a height of about 29 cm. My builder says that this can be easily corrected by adjusting the height of the upper steps. I just fear that the "low-wage workers from abroad" will now work on the stairs and, as far as they understand the problem at all, are supposed to correct it. What do you think, can such a staircase be corrected by oneself? How should one best proceed? What would a "real" staircase builder charge for such correction work?

Best regards
 

kaho674

2018-03-22 11:46:08
  • #2
Only asking a professional can help here, I would say. One naturally wonders who planned a step height of 29cm for a staircase here?
 

Otus11

2018-03-22 13:16:30
  • #3


Oh dear, a few people really slept through this one one after the other...

Did the construction company / architect know the build-up height of the stair covering? - Something like that belongs in the execution planning (the architectural planning is also signed off / approved by you). The drastic jump to +29 cm step height also suggests that underfloor heating or screed at the top was not planned.

Anyway.... According to DIN, anything over 20 cm step height is rubbish. And a nasty tripping hazard....

What is under the staircase? A masonry enclosure?
If yes, I still see the possibility of rebuilding a folding stair (with treads and risers) on the concrete staircase, which then gradually gains height and rests on the concrete staircase (the folding stair can also bear itself if necessary and is rather easier to realize than the overlaying variant). Cost made from about 7 K gross and another +1 K for plenty of painting and filler work on the edge.

With us, it looks like this (back then still under construction, still without glass wall):


Of course, that looks odd if the concrete staircase is cantilevered, as wood on top and concrete below then visibly don’t rise symmetrically and parallel.

Then only demolition and a new game remain...

I don’t see doing it oneself there.
 

Harun54

2018-03-22 14:11:05
  • #4
Hello,
thank you very much for your answers.

It is a cast single-flight concrete staircase with two quarter turns.
It leads from the upper floor up to the [Staffelgeschoss]. On the inside, there is a masonry wall from floor to ceiling, so the corrected different heights would actually not be visible.
I have seen some do-it-yourself videos on the internet in which the height of a staircase is adjusted using formwork boards.
Since the problem actually only concerns the step height and not the tread width, I thought that I might be able to do it myself.
Maybe someone has had a similar situation in their construction project and can share their experiences.
 

cschiko

2018-03-22 14:34:27
  • #5
What does it say in the plans? So was it already planned wrong or just implemented wrong? The difference is quite significant, but we had that with my best man too (just not as severe). The shell builder took the cellar staircase plan for the upper floor to the attic.

Here it somehow sounds like either the wrong plan was taken or at some point the floor structure was not taken into account. But that should actually be the developer's problem and not yours, so nothing you have to fix yourself.

Oh, with him it was solved by gradually raising the steps so that they matched again in the end. But if he had insisted, the shell builder would have torn out the staircase and redone it!
 

kaho674

2018-03-22 14:39:00
  • #6
I think this botch job is pretty unique. So if I understand you correctly, you want to build something like this (with 15 steps): Step 14 gets a 9cm increase Step 13 gets a 6cm increase Step 12 gets a 3cm increase Sounds not impossible at first.
 

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