Hello everyone,
We are currently looking for a suitable basement staircase for the (very small) self-contained apartment in our house. The stairwell opening measures 145 x 145 cm (57 x 57 inches), and the floor-to-ceiling height is about 246 cm (97 inches). A 140 cm (55 inch) spiral staircase would actually fit well in this space. However, I am concerned that such a staircase might not meet the fire protection requirements. As far as I understand, a basement room must have a "necessary staircase," so the widths, depths, etc. of the steps must comply with certain standards.
There is the option that the escape route from the self-contained apartment leads through the main apartment, where a proper staircase is already installed. The self-contained apartment already has a door to a basement room of the main apartment, which we intended to keep locked. If we leave this door open and, for example, equip it with a door closer, would that hopefully be sufficient?
Or is there another way to install a sufficiently sized staircase in the ceiling opening? I assume that a light well does not provide a proper emergency exit, does it?
I have attached two excerpts from the floor plans of the self-contained apartment on the ground floor and basement.
Thank you very much for your support!
We are currently looking for a suitable basement staircase for the (very small) self-contained apartment in our house. The stairwell opening measures 145 x 145 cm (57 x 57 inches), and the floor-to-ceiling height is about 246 cm (97 inches). A 140 cm (55 inch) spiral staircase would actually fit well in this space. However, I am concerned that such a staircase might not meet the fire protection requirements. As far as I understand, a basement room must have a "necessary staircase," so the widths, depths, etc. of the steps must comply with certain standards.
There is the option that the escape route from the self-contained apartment leads through the main apartment, where a proper staircase is already installed. The self-contained apartment already has a door to a basement room of the main apartment, which we intended to keep locked. If we leave this door open and, for example, equip it with a door closer, would that hopefully be sufficient?
Or is there another way to install a sufficiently sized staircase in the ceiling opening? I assume that a light well does not provide a proper emergency exit, does it?
I have attached two excerpts from the floor plans of the self-contained apartment on the ground floor and basement.
Thank you very much for your support!
mayglow schrieb:
If that’s the case (no idea), maybe that’s exactly the reason for the basement access? Well, the OP could address that. When I ask because I don’t fully understand, it’s very likely that I want to help but am a bit stuck "in understanding."
However, a basement room does not replace a living space.
Unfortunately, I also don’t understand why the granny flat needs access to the basement. The space for the multipurpose room for sleeping/living/dining/cooking is already quite limited.
EDIT:
Above all, you could also go up from the basement to the granny flat, since spiral staircases and similar options are not easy to secure anyway.
EDIT:
Above all, you could also go up from the basement to the granny flat, since spiral staircases and similar options are not easy to secure anyway.
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