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Re: [ARSCLIST] Floor Load Capacity
Definitely agree on all your points. But then again I have been in more than one NYC apartments,
we're talking maybe 1900's through 1920's buildings here, obviously metal beams or super-strong
wooden construction. In these several apartments, I've seen books, records, tapes and equipment
stockpiled to the extent that there is barely room to move. You'd never in a million years think the
floor could hold it or that it's humanly possible to lug all that stuff up XX flights of narrow old
stairs. But yet, there it is. And I'm sure I have not seen anywhere near a small fraction of the
total NYC apartments and lofts that fit this description.
Then there's our house. 1975 Brady Bunch plywood and pine special. Even having 3 desks in our office
puts noticeable strain and creak in the floor, which is over our garage. So, all the records and
tapes go on the slab. No collapses yet, in 12 years.
----- Original Message -----
From: "Jim Lindner" <jim@xxxxxxxxxxxxxxxxx>
To: <ARSCLIST@xxxxxxxxxxxxxxxx>
Sent: Thursday, December 21, 2006 2:54 PM
Subject: Re: [ARSCLIST] Floor Load Capacity
Slabs have issues that need to be investigated as well, not all of
them are poured as thick as others and just because it is on ground
level does not mean that it has the ability to withstand a high load
per square foot. Allot depends on the amount and type of rebar and
the depth of the pour and type of concrete mix. Also some floors have
things buried in them - like heating pipes and electrical pipes.
Sometimes there can be an erosion of some of the soil under the floor
which can lead to the floor becoming cantilevered without being
designed that way - drainage can be an issue. Again - all good
reasons to have an inspection by a knowledgeable person.
Jim Lindner
Email: jim@xxxxxxxxxxxxxxxxx
Media Matters LLC.
SAMMA Systems LLC.
450 West 31st Street 4th Floor
New York, N.Y. 10001
eFax (646) 349-4475
Mobile: (917) 945-2662
Office: (212) 268-5528
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Media Matters LLC. is a technical consultancy specializing in
archival audio and video material. We provide advice and analysis, to
media archives that apply the beneficial advances in technology to
collection management.
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SAMMA Systems provides tools and products that implement and optimize
the advances in modern technology with established media preservation
and access practices.
On Dec 21, 2006, at 1:37 PM, Tom Fine wrote:
For what it's worth, when my parents moved into the house I grew up in, a few years before I was
born, they decided to consolidate their very large collection of records and tapes -- at least
those not in my father's office at the studio. The basement was non-ideal because it's too wet
and too dark/dank for my mother in any case. So they decided to put them all on a long wall,
floor to ceiling, in their shared office room. The contractor planned out the shelves and then
did weight estimates and promptly changed the plan so that first of all, the shelves were on a
structural wall and second that there were new reinforcing columns added below. He did something
where the weight is centered on a foundation wall (stone and morter) because the wall is where
the original house meets a late 1800's expansion (the office is the ground floor of the
expansion). The shelves have been chock full -- I mean full to the brim -- of records and tapes
since 1964 and no problems thus far. I'd estimate the weight must be approaching a ton, spread
down a 15' or 20' length. The shelves are hardwood, I think.
In my house, I have a similar shelf, but it's free-standing on the carpeted concrete slab
downstairs. I just stacked up a wall's worth of those pine cubes you can find at AC Moore and
other stores. AC Moore has a coupon in our pennysaver each week, so all were bought at 30 or 50
percent off sticker. There's another similar stack in the furnace room for my extensive
collection of audio books and magazines.
By the way, at 128K MP3, the entire wall at my parents' house could fit in an 80-gig iPod, half a
deck of cards. The quality would not be anywhere near the original, though.
-- Tom Fine
----- Original Message ----- From: "Roger and Allison Kulp" <thorenstd124@xxxxxxxxx>
To: <ARSCLIST@xxxxxxxxxxxxxxxx>
Sent: Thursday, December 21, 2006 1:00 PM
Subject: Re: [ARSCLIST] Floor Load Capacity
I never had to worry about that,as mine have always bee in a ground-level area, witha a concrete
floor.I would not suggest anybody store a big collection any other way.
Roger Kulp
Nicole Blain <Nicole_Blain@xxxxxx> wrote: Hello all,
Does anyone know what the standards are for floor load capacity for stacks of 12" vinyl and 10"
shellac discs.
The standard for library book stacks is ~150 pounds psf. I tried and failed to find anything on
the internet that specifies vinyl and/or shellac. I imagine it would be higher for the latter.
If there's an official document or study out there too, it would help convince the
architects/engineers that this is an important issue.
I found an article in the Fall 1993 ARSC Journal: Storage of Sound Recordings by Richard Warren
Jr. He has weight per linear foot, but not floor load capacity.
Our collection houses ~175,000 12" vinyl and ~30,000 10" shellac discs.
Merci,
Nicole
Nicole Blain
Manager, Music Library/
Chef, Musicothèque
CBC/Radio-Canada
P.O. Box 500, Station A
Toronto, ON
Canada M5W 1E6
Tel: 416.205.5901
Fax: 416.205.8574
nicole_blain@xxxxxx
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