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RE: Anybody Know About Ladders?

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Bill,

I don't believe that you need to put a cage on the ladder until the height between levels reaches 20 feet.  You can put a locking door on the bottom to deter unauthorized access.  The client can have a cage if he wants for shorter ladders.  Rung size needs to be minimum of 1 inch diameter or 1" square.  I think that the minimum width between the ladder rails is 18 inches.

--Kipp Martin
  Carollo Engineers
  Portland, Oregon


________________________________________
From: Bill Polhemus [bill(--nospam--at)polhemus.cc]
Sent: Thursday, May 21, 2009 8:14 AM
To: seaint(--nospam--at)seaint.org
Subject: Anybody Know About Ladders?

Got a small indy job. Anyone know the precise requirements for access
ladders? There seem to be a boatload of differentiated OSHA requirements
depending upon the use.

Normally I"m used to dealing with petrochem plants, etc. where they have
to have "night access," "severe service," etc.

But all's I need in this case is a ladder to access a maintenance
platform fifteen feet above grade, where the owner of a commercial
building wants to place his outside A/C units so they don't get stolen
or vandalized (the times we live in, etc.) It think it'll have to have a
locking door, presumably at the bottom of the cage, so the little
darlings don't get daring.

I see a bunch of places where I can order caged ladders to length, but I
don't want to tell the client he has to buy a ladder that's way too
expensive for him.

Any suggestions?

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