ᐅ Floor plan question: Replacing a straight staircase with an L-shaped staircase

kbt09 schrieb:

Your hallway is 213 cm (84 inches) wide... For L-shaped stairs, you can design the first flight to be just the width of the stairs, but this requires careful planning. Even then, you only have about 100–110 cm (39–43 inches) left for the front door. The entrance and dirt zone will be directly in front of the staircase.

The standard L-shaped stair usually has a 125 cm (49 inches) dimension on the shorter leg... which leaves you less than 90 cm (35 inches) for the front door.

The 213 cm (84 inches) you mentioned for the hallway width is probably the rough opening size, so the usable space will be somewhat narrower.

Since you haven’t shared the complete floor plan, it’s not possible to consider alternative options.

I also find the planned 2–3 steps overlapping the ceiling height critical. It would help to know the story height.

Thank you! That helps me a lot.

kbt09 schrieb:

Your hallway is 213 cm (84 inches) ... For L-shaped stairs, the entry side can also be made “only” as wide as the stair width, but that requires precise planning. This still leaves about 100-110 cm (39-43 inches) for the front door. And the dirt zone at the entrance is directly in front of the stairway.

The standard L-shaped stair usually has 125 cm (49 inches) on the short leg of the L... then you won’t have 90 cm (35 inches) left for the front door.

And the 213 cm (84 inches) you mentioned for the hallway width is probably the rough opening size. It will get a bit narrower in the finished state.

You are not providing the full floor plan, so it’s not possible to check other alternatives.

I also find the planned 2-3 riser ceiling overlap critical. The floor-to-ceiling height would need to be known here.

Since the building permit / planning permission has already been submitted, I do not want to share the current floor plan here. My question has been answered and we will keep everything as it is.
Thank you very much for your help!

That must be an incredibly great floor plan to keep it such a secret.
I’ve never heard of building permits / planning permissions being denied just because someone nailed their floor plan to the big oak tree in the village square.

xMisterDx schrieb:

This must be an incredibly great floor plan if it’s being kept such a secret.
I’ve never heard of building permit applications being rejected just because someone nailed their floor plan to the big oak tree in the village square.

That’s not the point at all. What I’m more concerned about is that I’ve often seen in this forum cases where homeowners uploaded their building permit application, asked a question about the floor plan (for example, whether to rotate the staircase), uploaded the entire floor plan, and then received a lot of criticism.
I just want to avoid that.
There’s no reason to upload the floor plan since my question has already been answered 🙂

kbt09 schrieb:

@11ant ... honestly ... then it should be discussed there. If someone creates a separate thread, I expect either the information in one post or at least the relevant links to corresponding posts with the current floor plans in the question. I’m not going to piece together the latest floor plan version from a thread like this.

That’s why I promptly fix such a missing element as soon as I notice it. In this case, in post #2, immediately following the question, and before your first response in post #3.

s_mhofma schrieb:

You don’t have to bother looking for floor plans. The old ones are no longer current, and my specific point was to keep the hallway width as is. That means, all other rooms too, should remain unchanged. The question was just whether an L-shaped staircase is possible given the hallway width. For that, the full floor plan is not necessary.

The importance of basic information for well-founded advice is unfortunately often underestimated: “Doctor, why bother with the tests—I already know what you’ll write on the prescription” ;-(

s_mhofma schrieb:

I hoped there would be someone here experienced with staircases who could tell me if an effective run of the stairs and the hallway width make it technically feasible.

And now you are snapping at the staircase expert because she didn’t explain her diagnosis in such detail that 11ant would understand or because she requested that linking to the basics would be helpful (?). There is a causal connection between the accessibility of the fundamentals and the depth of diagnosis and treatment recommendations.

kbt09 schrieb:

I’m also concerned about the planned 2–3 step ceiling overlap. You’d need to know the floor-to-floor height for that.

Three point nine four meters (12 feet 11 inches), as stated in the original opening post here ;-)

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s_mhofma schrieb:

That's not the point at all. My concern is that I have often seen cases in this forum where homeowners uploaded their building permit application, asked a question about the floor plan (for example, wanting to rotate the stairs), uploaded the complete floor plan, and then received a barrage of criticism.
I just want to avoid that.
There is no reason to upload the floor plan since my question has already been answered 🙂

I can somewhat understand you. It’s not pleasant when your own floor plan gets criticized. However, a staircase inevitably affects both floors. A quarter-turn staircase also creates a very different stairwell compared to a straight staircase, which has implications. And any change can trigger a domino effect on the corresponding floor.