ᐅ Staircase tread width below DIN standard: Defect and price reduction in euros (€)

Created on: 10 Sep 2023 21:13
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Mimi123
Hello everyone!

We have purchased a semi-detached house in shell condition. During the inspection phase for the wooden staircase, it became clear that the clear width is below the DIN standard 18065, specifically less than 80 cm (31.5 inches). We are looking for a solution with the construction company but would like to ask the forum how much price reduction in euros we might expect if no solution can be found. Just for your information: the only possible solution would be to widen the stairwell afterwards by reducing the stairwell opening.

What kind of price reduction in EUR should be considered here?

Thank you very much!
Y
ypg
11 Sep 2023 10:56
Besides the issue of the second escape route: can you get your furniture upstairs?
Please upload a photo and the floor plan.
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hanghaus2023
11 Sep 2023 15:54
Who made a planning mistake? If the shell construction is finished and you bought it as is, where would a price reduction be justified?

Please share the detailed construction plans for the staircase here. Ideally, include the shell construction dimensions according to the existing plans.

This cannot be a hidden defect that would justify a price reduction.
M
Mimi123
11 Sep 2023 20:47
Hello everyone! After consulting with the developer, they will now reduce the stairwell opening to increase the tread width. This will solve the problem and make the staircase more usable for us (e.g., emergency exit and furniture transport).
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xMisterDx
12 Sep 2023 21:03
Silly question. Does the stairwell opening really need to be large? Maximize the available width as much as possible. We have 90cm (35 inches) with a 90° turn at the bottom, and even then, it was a real challenge to carry long cabinet parts or moving boxes upstairs. A moving box is about 600mm (24 inches) long, so with an 800mm (31.5 inches) stair width, there’s barely enough space left for the hands carrying it...

The same applies to emergency exits: the wider, the better. Just because you meet the minimum requirement doesn’t mean everything is ideal 😉