-------- Original Message --------
Subject: Re: Standards for measuring map collection storage capacity?
Date: Wed, 1 May 2013 10:04:02 -0400
From: Fry, Michael <[log in to unmask]>
To: Maps, Air Photo, GIS Forum - Map Librarianship
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Brendan,
Six or eight years ago I had a similar question, and I still have a
compilation of replies and/or posts I dug up from the list archives. In
short, I've never heard of any sheet map collection measurement units
except "shelves". Which, for a whole host of reasons--drawer size, map
size, map thickness, usage patterns, use of folders/dividers, presence
of backing or encapsulation materials, etc.--is only partially instructive.
Here's my compilation:
HelenJane Armstrong, Univ. of Florida (ret.)
=============================================
The question concerning map and map case weights was addressed in a classic
article by Catherine Bahn, Library of Congress Geography and Map
Division. It
originally appeared in the Special Libraries Association, Geography and Map
Division "Bulletin" No.46 (1961), pp.3-17. It was later reprinted in "MAP
LIBRARIANSHIP: Readings" compiled by Roman Drazniowsky and published in
1975.
Both are titled "Map Libraries--Space and Equipment" The map space
estimates
were also addressed in "MAP LIBRARIANSHIP: Readings" by Mary Galneder, Univ-
ersity of Wisconsin in her article "Storage and Preservation". Mary's
article was reprinted from "Special Libraries" vol.61, no.6(1970).
pp.271-274.
In "Map Librarianship", Mary Larsgaard" cites these article but does not
reprint any of the information.
Johnnie Sutherland, University of Georgia (ret.)
==============================================
I would like to add a little warning about the case weight
loads found in the literature. They are mainly averages done with a
specific
number of maps per drawer, usually the recommended 200 sheets. Actual
maximum
load can be higher. Here at Georgia I have five high case stacks and some
archival storage stacks with over 12,000 maps per standard case stack
footprint
The cases with the NOAA charts are well over 300 lb/sq ft. Jim Minton at
Tennessee has given me figures of over 340 lb for some of his case stacks.
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===============================
We weighed some very heavily stuffed 5 drawer Hamiltons and came up with a
case total of 500 lbs.
Frances Woodward, University of British Columbia
=================================================
I was looking for this recently, as there is a question of the map
library being moved to an area which we don't think has adequate floor
load capacity. Here are a few references:
* Beverly CHEN, "Map library design: guidelines, ideas, tips and
pitfalls," ACMLA Bulletin, no. 89 (Dec. 1993);
* Catherine BAHN, "Map libraries - space and equipment," SLA G&M
Division Bulletin, no. 46 (Dec. 1961);
* Mary GALNEDER, "Equipment for map libraries," Special Libraries, v. 61
no. 6 (1970).
Arlyn Sherwood, IL State Library (ret.)
=========================================
There's been a lot of literature over the years on moving map collections,
especially in the SLA G&M Bulletin, which probably gives this figure.
But our
stacks, which includes the map cabinet rooms, were built to the spec of
being
able to hold 200 pounds per square foot, I think, and we're still on the 3rd
and 4th floors after 6 years.
Amy Ciccone
University of Southern California
===================================
A key source used by library architects, planners, and designers,
"Planning academic and research library buildings" by Keyes Metcalf (2nd
ed., 1986, ed. by Leighton & Weber) states the following (p.183, "Maps and
broadsides"):
A commonly available case made of steel is fabricated in units of five
drawers; the cases are typically set up with two or three units plus a
base, which permits use of the top surface for sorting or viewing the maps.
Cases have been put together that are 6 ft high or higher, but sheets and
folders stored at this height may be damaged when they are removed from or
replaced in the cases. When a drawer is so high, one's vision is cut off
unless a stool is used when filing. Weight can become a significant factor
when these cases are assembled to greater heights.
Chris Kimball
===============
In my experience, 40 USGS quad sheets(approx 22"x26") weigh 3 lbs.
Daniel T. Seldin, Univ. of Indiana (ret.)
============================================
Catherine I. Bahn published an article giving the weight of loaded map
cases that gave the weight of 200 maps in a 2" drawer in a 46" map case
as 68 pounds.
The article, "Map libraries--space and equipment was published in the
SLA Geography and Map Division Bulletin, No 46, 1961, p. 3-17. This
article was reprinted in Map librarianship : readings / compiled by
Roman Drazniowsky. Metuchen, N.J. : The Scarecrow Press, Inc., 1975. p.
364-384. The table of weights is included in the WAML Tool box on the
web at http://www.waml.org/mapcabwt.html.
David Glen
===========
When I put 80 USGS 7.5' quads on the balance scale I get just over 6 lbs.
The older quads were printed on heavier paper and these 80 sheets
contain a mix of older and newer maps.
Kathleen Weessies, Michigan State Univ.
========================================
When I was looking into this several months ago I found wildly different
numbers from two sources. I wouldn't take any one number as gospel. I
received an email in reply to my request last May from a cartographer in
California who said he put 80 USGS 7.5' topos on a scale and he got just
over 6 pounds. He notes that the older quads were printed on thicker
paper and his 80 sheets were a mixture of old & new.
Hope this helps.
mf
--
Michael Fry
Senior Map Librarian
National Geographic Society
1145 17th St. N.W.
Washington, D.C. 20036
202.857.7098
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-----Original Message-----
From: Maps, Air Photo, GIS Forum - Map Librarianship
[mailto:[log in to unmask]
<mailto:[log in to unmask]>] On Behalf Of Angie Cope, American
Geographical Society Library, UW Milwaukee
Sent: Tuesday, April 30, 2013 6:31 AM
To: [log in to unmask] <mailto:[log in to unmask]>
Subject: Standards for measuring map collection storage capacity?
-------- Original Message --------
Subject: Standards for measuring map collection storage
capacity?
Date: Tue, 30 Apr 2013 05:33:16 +0000
From: Brendan Whyte <[log in to unmask]
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To: Carto-soc <[log in to unmask]
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<mailto:[log in to unmask]
<mailto:[log in to unmask]>>>, mapsL
<[log in to unmask] <mailto:[log in to unmask]>
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<mailto:[log in to unmask]>>>
NSLA, the National and State Libraries of Australasia (i.e.
Australia
and NZ) have a working group on collection storage, and are wanting
to
standardise the way each institution calculates and reports map
storage
volumes.
Book storage is measured in linear metres of shelving, but maps are
more
tricky to measure (drawersful? Cabinetsful? Vertical metres? Pure
sheet
numbers?).
In terms of total capacity, and the amount of it which is currently
occupied, and the amount of annual growth in collection size, they
have
asked me to ask the list:
“Does anyone have information on methodologies and units of
measure
for recording capacity, occupancy, growth and vacancy rates of map
collections to assist with undertaking storage projections? Is
anyone
aware of any standards relating to this?”
Please send responses to Kylie Hawkins [log in to unmask]
<mailto:[log in to unmask]>
<mailto:[log in to unmask] <mailto:[log in to unmask]>>
<mailto:[log in to unmask] <mailto:[log in to unmask]>> before 19
May.
We're particualy interested to know if there are any standard
methodologies used by other library associations or groupings.
Thank you!
Brendan Whyte
National Library of Australia
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