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Squeezing in more steps

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  • Squeezing in more steps

    I have a tight space in which to draw the design for a staircase. The space is for a U-turn arrangement and cannot be enlarged without compromising a lot of stuff in the house design. All was well when the lower floor was nominally 8/0 high and the floor frame was in 2x10, but desired changes raised the 8/0 to 9/0 and the floor frame deepened, so the staircase, originally needing 14 risers from level 1 to level 1, now needs 16. Rise is 7-9/16. I used a run of 10.

    The pics show my first rough attempt at doing the squeeze. There is nothing beneath this staircase except a basement floor, so platforming the build for the odds, and doing stringers for the short straight runs, is an idea.

  • #2
    Re: Squeezing in more steps

    I don't know your code requirements, but in CT I can use 8 1/4" risers and 9" treads. The spiral style stair has min sizes at the wall where the pie starts.

    Your plan is ok, except the stair at the bottom of the dividing wall is too small, so the step to the left starts to behave like a landing instead of a winder style stairway. Your cadence is lost when you run into a landing mid point on a stairway, so make the small step/tread larger by taking space away from the big one.
    Take Care

    Jim

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    • #3
      Re: Squeezing in more steps

      I did some fooling around in Sketchup, and came up with what may be the best way to do this using winders. The pic shows a 5-kite array around the turn. There are sixteen rises to travel 121 inches, for 7-9/16" per, and this latest hallucination has the tread run at 10-1/2".

      A fairly comfy staircase to traverse.

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      • #4
        Re: Squeezing in more steps

        I like it. But, in CT and the IRC2009 the min winder width is 6" at any point on the tread, meaning at the center point it looks like you're too tight.

        Check you code first, then adjust if necessary!
        Take Care

        Jim

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        • #5
          Re: Squeezing in more steps

          Thanks for looking.

          No plans review, no code check, and no inspections where this will be built.

          What made CT allow steep stairs?

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          • #6
            Re: Squeezing in more steps

            we're all tall?
            Take Care

            Jim

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            • #7
              Re: Squeezing in more steps

              Originally posted by James Eggert View Post
              we're all tall?
              I take it the walrus is designing for construction in Texas, in Texas you need higher stair clearance, the women have big hair and the men are known to wear their 10 gallon hats in the house, and as we all know you "Don't mess with Texas", and a smart man never messes with a Texas woman's hair.
              You will ask what goal the U.S. is pursuing? .... their external debt is huge, and ruining other countries is their customary method. Even ownership of the global 'printing press' is no longer helping. Nor is full control over NATO, None of that if enough for the 21st century colonizers. They don't just need to preserve the dollar as the only global currency but also to get their hands on the economic wealth of other large powers and regions. - Sergei Naryshkin

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