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RE: butchering steel stud webs - guideline?

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An EIT found these prescriptive code references in the plumbing code appendix
F. 

International Plumbing Code - F101.5  Cutting, notching and boring holes in
cold formed steel framing.  Flanges and lips of load-bearing cold-formed
steel framing members shall not be cut or notched.  Holes in webs of
load-bearing cold formed steel framing members shall be permitted along the
centerline of the web of the framing member, and shall not exceed the
dimensional limitations, penatration spacing, or minimum hole edge distance
as perscribed by the registered design professional.

International Plumbing Code - F101.6  Cutting, notching and boring holes in
nonstructural cold formed steel framing.  Flanges and lips of nonstructural
cold-formed steel framing members shall not be cut or notched.  Holes in webs
of nonstructural cold formed steel framing members shall be permitted along
the centerline of the web of the framing member, shall not exceed 1.5" in
width or 4" in length, and holes shall not be spaced less than 24 " center to
center from another hole or 10" from the end of the member.

Anyone know if there is anything like this in the electrical code?

-----Original Message-----
From: Wade Sticht, P.E. [mailto:wstichtpe(--nospam--at)gmail.com] 
Sent: Friday, February 29, 2008 5:29 AM
To: seaint(--nospam--at)seaint.org
Subject: Re: butchering steel stud webs - guideline?

>From page 5 of the SSMA Product Technical Information catalog, ICBO ER-4943P,
punchouts have a maximum width of half the member depth or 2.5", whichever is
less and a maximum length of 4.5".  Minimum spacing is 24", minimum distance
from end of stud to the near edge of the punch out is 10".  Here's the link:
 
http://www.ssma.com/ssmatechcatalog.pdf
 
Hope this helps.
 
Wade Sticht, PE
 


 
On Fri, Feb 29, 2008 at 5:56 AM, Jerry Coombs <JCoombs(--nospam--at)carollo.com> wrote:


	I don't believe there is any prescriptive guideline.  
	For highly-loaded sluds, it likely needs to be calculated, which is
why the Codes require a stamp for anything outside simple prescriptive
"designs"
	The design for how it is loaded is just like any other beam/ col.
Relatively easy to calc the properties and design for the 5 psf load
	However you CAN take, and justify, a relatively prescriptive
approach.  Look at your size/ gage of stud.  measure the extent of the hole
from "butchering.  If the hole is no larger than the typical size of the hole
in a punched stud, use the load table for punched.  If the application works
for the punched stud (very likely), it'll work fairly conservatively for your
stud.
	JDC


	>>> On 2/28/2008 at 3:21 PM, "Haan, Scott M POA"
<Scott.M.Haan(--nospam--at)usace.army.mil> wrote:
	
	Anyone aware of a prescriptive code requirement or SSMA guideline or
	something for how much web can be butchered out interior partition
steel
	studs to get plumbing through?
	
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