Replies

1. 
   Guest_ | Nov 12, 1999 10:04pm | #1

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   I have never had a problem spaning 36" with 2x df. Consider 2x12, though, because 9.5" is pushing the minimum for the run.

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   Guest_ | Nov 12, 1999 10:54pm | #2

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   I would agree with Mike, try and go with 2x12's.

   Joseph Fusco View Image"Whenever, therefore, people are deceived and form opinions wide of the truth, it is clear that the error has slid into their minds through the medium of certain resemblance's to that truth." Socrates

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   Reno | Nov 13, 1999 07:09am | #3

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   Careful about having no risers is you're having it inspected. Here we must have them to accomodate <4in codes.

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   Guest_ | Nov 13, 1999 09:58am | #4

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   I sometimes use that type of stair set up on exterior decks and usually use a 3X12 to span up to 42 inches. I agree that 9-1/2 inches is pushing the tread width for comfort and the code minium. Marshall Winn

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   Guest_ | Nov 13, 1999 07:45pm | #5

   *A third stringer would help firm the treads up for that solid feel that, for me anyway, is a priority. You could rout the edges decoratively or something... Careful with varnish, slick when wet (as my butt will confirm).Reno, interesting about the gap codes. Makes sense, if the guardrail has to be the same, but I haven't heard it put that way. I like risers anyway, and skirt-wearers do prefer them for privacy...

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   Guest_ | Nov 13, 1999 08:28pm | #6

   *Mr. Nail,9 1/4" tread width is not a good idea. Sounds dangerous and won't pass code. I agree with the 2x12. I'm also not sure if the open riser will pass. I had a similar metal and wood staircase called for in some plans here about six months ago. I called the city inspector to see if it would pass the safty code for children and he said no. It was fine for comercial applications but not for residential. The architectual firm that drew this house did only comercial. This was there first residential project. (Probably thier last) Building codes are there for a reason. All of them good reasons. If you're not sure, call the city building inspector in your area and just ask him. I've found most inspectors to be very helpful. The inforcement of codes became necessary to protect the public from sub-standard and unsafe building practices. A DIY'er like you (no offence intended) may build an unsafe staircase that could later cause someone a serious injury just because you don't know the rules of building safely. You may find it difficult to sell your house later if the realestate inspector finds it not up to code. He will make you fix all the problems before you can close on the sale.Think about it. Good luck,Ed. Williams

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   Guest_ | Nov 13, 1999 08:58pm | #7

   *Remember that article in FHB a few years ago about "Alternative Building Codes" that were recently recognized in CA? They were sayin' that under these codes you could do virtually anything you want as long as it is your own home and you assume responsibility for it. You could only build one every so many years or something. I wonder if that freedom extends to a safety issue like this?

4. 
   Ron_Budgell | Nov 14, 1999 06:47am | #8

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   Do you have to install your stringers at the wall? Can they be installed, say, 8 to 10 inches off centre to increase the tread stiffness? The loading is never at the ends of the treads.

5. 
   Guest_ | Nov 15, 1999 06:30am | #9

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   I was thinking about that, too, but supposed that doing so would be at the price of stringer stiffness.

6. 
   BentNail | Jan 04, 2000 11:33pm | #10

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   The stairwell for my DIY project is framed 38" wide by 120" long. By the time I allow for 3/4" paneling and two 2x12 stringers, the actual span between the inside edges of the stringers will be... 33.5". (Check my math.)
   I want an open stairway, no risers and no middle stringer. Q: Can I safely span 33.5" with 2x10 Doug fir treads?
   As an alternative, I have thought of ripping some good 2x stock to a net 2x1.5" and gluing/doweling/planing some treads at a net 2x10. Lot of work. Must be an easier way.
   Treads will be varnished, no carpet. Style elsewhere is DIY rustic.
   Helpful thoughts appreciated.