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RE: IBC 2003 industrial stair

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I agree with your concerns. It seems that the codes that IBC was based on
had more realistic exceptions to some rules - it is not clear why they did
not carry thru. 
Section 1009.10 of the 2003 IBC allows alternating tread devices (e.g.,
Lapeyre Stairs) for some limited "mezzanine" areas - you might be able to
argue that an OSHA approved stair should be permitted in similar situations,
although OSHA stairs are not explicitly covered in IBC. 

William C. Sherman, PE
(Bill Sherman)
CDM, Denver, CO
Phone: 303-298-1311
Fax: 303-293-8236
email: shermanwc(--nospam--at)


	From: Ken Peoples [mailto:kspeoples(--nospam--at)] 
	Sent: Monday, August 16, 2004 4:26 PM
	To: Seaint
	Subject: IBC 2003 industrial stair
	Now that PA has adopted 2003 IBC, I am told that we can't have
stairs for industrial platforms within a building that are anything but 7"
maximum riser and 11" minimum tread.  I really hope that someone out there
will disagree with that statement and show me where this would be allowed.
We used to be able to say that the platform was just for equipment access
(i.e. not occupied) and use a stair that met OSHA.  But now we have a
project that I would have bet could have had an OSHA stair that the Code
Enforcement Officer is saying has to be 7/11 - even though he agrees that
the platforms are equipment access platforms.  I am pretty sure that we
could get away with putting ladders in (instead of stairs), but the Owner
would like stairs.  So, although an OSHA ladder would be OK, an OSHA stair
would not.  Have any of you run into this yet?
	Kenneth S. Peoples, P. E.
	Lehigh Valley Technical Associates, Inc.
	1584 Weaversville Road
	Northampton, PA 18067-9039
	Phone: (610) 262-6345
	Fax: (610) 262-8188
	e-mail: kpeoples(--nospam--at)

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