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  1. #1
    Join Date
    May 2011
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    13

    Smile Stair Case Missing

    My home was built aroound 1906. The main Staircase was removed I would like to use a 5 3/4" rise with a 13" run the ceing height is 9'3" How would this look in a room that is 11' X 14' 7" ?

  2. #2
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: Stair Case Missing

    it would look terrible, honestly. using a unit rise of 5 3/4" would mean 19 risers which in turn means you will have to have a landing as a single flight of stairs must have a resting point when the number of risers is more than 13. not only that at 13 risers the strenght of a stringer is just about maxed out even with switching to lvl as opposed to regular lumber

    also with a unit run of 13" you will be looking at 19.5 ft for the total length of the stair

    just plain stupid, a standard stair case most commonly has a unit rise of 7.5" and a unit run of 10.5"
    fire up the saw and make some dust

  3. #3
    Join Date
    Jan 2010
    Location
    Northern Virginia
    Posts
    1,165

    Default Re: Stair Case Missing

    The kind of rise/run you are proposing falls in the "monumental" category. Seen in grand public spaces. There is a similar stair in the National Gallery. It's marble with bronze railings. If you really want this (although honestly it seems way too large for the space allotted) you will really need to give it special handling at all phases, beginning with the design and engineering. We can't really help with that here; you first need to consult an architect.
    Casey
    Remove not the ancient landmark, which your fathers have set.

  4. #4
    Join Date
    Sep 2009
    Location
    florida
    Posts
    598

    Default Re: Stair Case Missing

    Quote Originally Posted by jkirk View Post
    it would look terrible, honestly. using a unit rise of 5 3/4" would mean 19 risers which in turn means you will have to have a landing as a single flight of stairs must have a resting point when the number of risers is more than 13. not only that at 13 risers the strenght of a stringer is just about maxed out even with switching to lvl as opposed to regular lumber

    also with a unit run of 13" you will be looking at 19.5 ft for the total length of the stair

    just plain stupid, a standard stair case most commonly has a unit rise of 7.5" and a unit run of 10.5"

    JK brings up a good point about the stringer material depth being maxed out with 13" treads. It's darn sure maxed out thats for sure. Im pretty sure an architect/structual engineer would spec it out to be a minimum of 14" LVL, possibly 16".

    Why do you want to use 13" treads ? Will Big Foot be using them ? If so I suggest using a stringer in the middle also !


    just plain stupid, a standard stair case most commonly has a unit rise of 7.5" and a unit run of 10.5"

    JK take a deep breath !!!!!!
    Gizmo

    Cut it 3 times & it's still to short.
    Inventor of the Miter Master Plus.

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  5. #5
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,969

    Default Re: Stair Case Missing

    Your local building codes may also have a minimum riser / run ratio allowable for residential structures.

  6. #6
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: Stair Case Missing

    ive been breathing into a paper bag since last night when i read this...
    fire up the saw and make some dust

  7. #7
    Join Date
    Aug 2007
    Location
    The Great White North
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    4,045

    Default Re: Stair Case Missing

    ......................
    "" an ounce of perception -- a pound of obscure "
    - Rush

  8. #8
    Join Date
    Sep 2009
    Location
    florida
    Posts
    598

    Default Re: Stair Case Missing

    Quote Originally Posted by jkirk View Post
    ive been breathing into a paper bag since last night when i read this...

    Know thats funny......
    Gizmo

    Cut it 3 times & it's still to short.
    Inventor of the Miter Master Plus.

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  9. #9
    Join Date
    Jan 2008
    Posts
    2,034

    Default Re: Stair Case Missing

    With the original already gone, you are no longer in the land of "repairs" and the work will have to meet the current building codes which have gone crazy for stairs and rails. Handrail dimension height and width, overall length of gripping area radius, firestop at first riser (why not all of them? GOK...), minimum stringer thickness at cuts, maximum unsupported run length, minimum tread width and depth, minimum and maximum rise, handrail placement, when you must have two handrails, landings and their dimensions, and I'm sure I've missed something.

    To be in this business you gotta love it or you'll go nuts!- Phil

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