what is the code on interior stairs as far as step hieght differance?
i thought it was no step can be more than 1/4″ differance from any other step
and i thought that there was somthing about the hieght of the bottom step,also what is the max step hieght.
i used to know this but i have an upcoming stair job and cant exactly remember the stair hieght codes
thanks…………..nicko
Replies
3/8" in the flight... 3/4" top and bottom... IRC NC
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thanks so much for the quick responses i went to make my toast and took a quck look before i walked out the door and was surprised to see answers so quickly
snort what do you mean 3/4 at the top and bottom?
thanks .............nicko
I think Snort said top and bottom because that's usually where the biggest discrepancies show up -- e.g. not allowing for the correct finish floor thickness.But he's definitely got the numbers wrong. Go with 3/16" and 3/8".AitchKay
As I said, I'm relating the NC code I build by.
The 3/4" top and bottom riser variation is because floor treatments could change. However, the 3/4 difference cannot make the riser higher than the highest allowable by code, which in my case is 8 1/4".
So, theoretically, if all your risers (except the top and bottom) are 7 1/2", the top and/or bottom could be 8 1/4". If they are less than 7 1/2", it should't be less than 3/8", but that's a bit of a grey area... but then, I'm just a dumb carpenter who has to build stairs<!---->
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We'll have a kid
Or maybe we'll rent one
He's got to be straight
We don't want a bent one
He'll drink his baby brew
From a big brass cup
Someday he may be president
If things loosen up
snort
thanks for the help i checked out your website.
great work
thanks........nicko
I checked the code for PA, and found this:http://www.pacode.com/secure/data/034/chapter403/s403.21.htmlscroll down to 6 ii aI don't see any exception for the top and bottom riser. If it's an issue, call your inspector.http://www.tvwsolar.com
We'll have a kid
Or maybe we'll rent one
He's got to be straight
We don't want a bent one
He'll drink his baby brew
From a big brass cup
Someday he may be president
If things loosen up
snort, thanks for taking the time to post your findings
matt in the end that is what i need to do is check with my local inspector
here in my town in pa. we just adopted the uniform construction code (ucc) in the past two years or so. and even though it is supposed to be the "uniform" construction code things you can do in one municipality you cant do in another and so on.
that is why most contractors here call it the "un-uniform construction code"
thanks everyone for the help.............nicko
Yep, always best to ask the inspector!But since you wouldn't WANT to have a 3/4" discrepancy anyway, shoot for doing better than the 3/16" & 3/8" rule.Around here, those numbers represent a "D-" grade -- just barely passing -- so I try for 1/16" & 1/8".If I achieve that, I figure I did an excellent, but not anal, job.AitchKay
Or better still - buy a code book - your profile indicates you are a construction professional.
BTW - "UCC" WTF????
I googled up this from this web page:
"The codes currently in use under the UCC are the 2006 International Codes issued by the International Code Council. No supplements to the 2006 codes have been adopted for use. For further information about the codes and standards adopted, click on the link entitled "UCC Codes" below."
To me a little ambiguous though - is that the IRC or the IBC? (residential or building)
Edited 10/15/2009 7:23 pm ET by Matt
I've been using the WTF for about 10 years now...AitchKay
What state/etc do you live in? How about putting a little something in your profie? I'm guessing PA since it seems like maybe UCC is specific to PA?
RE the UCC, sounds like it is kinda an umberlla where they lumb several different codes under? Or maybe it is just their name slapped on the IRC or IBC?
WTF Building Code!!!
ROFLMAO!!!View Image my website
LOL, sometimes I'm slow
Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!
>is that the IRC or the IBC?<
probably both. 2006 IRC for 1 & 2 dwelling res and the 2006 IBC for commercial
Wow! You're right! That's amazing!We've had to build to the 3/16"/3/8" tolerance for at least 15 years or so.I guess you guys get to benefit from that casual, "Down South" attitude!Maybe that's why so many people retire Down South -- the reverse would be way to hard to pull off!Best Wishes from Up North,AitchKay
we just like trippin'<g>http://www.tvwsolar.com
We'll have a kid
Or maybe we'll rent one
He's got to be straight
We don't want a bent one
He'll drink his baby brew
From a big brass cup
Someday he may be president
If things loosen up
http://forums.taunton.com/n/mb/message.asp?webtag=tp-breaktime&msg=125421.48
couple of good links to the codes in this thread even tho it foccuses on the winders, it covers a lot of territory. Download the PDF in the thread
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Taunton University of Knowledge FHB Campus at Breaktime.
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No more than 3/16" difference between any two adjacent rises, and no more than 3/8" difference between any two rises in the entire flight.
So if you're shooting for a 7" rise, say, 6 13/16" to 7 3/16" would work, as long as those two rises weren't next to each other.
Before you start, visit the local craft store and buy a box each of coffee stirrers (skinny), tongue depressors, (medium), and popsicle sticks (fat).
Armed with those shims and a tube of PL, you'll build a set of stairs that the inspector will swear a machinist cut!
Aitchkay
You need to find out what code is for your state/locality.