Long ago, we figured out, on average, how many vertical files (our term for tiny, one folder collections)fit in a 5" document case.  We came up with a standardized figure of .03 feet, which we use for all vertical files.  
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Nan Cohen
Reference and Description Specialist
Special Collections Division
University of Washington Libraries
Intercom: #2447
Tel: (206)543-1929


Be kind, for everyone you meet is fighting a hard battle. --Plato

On Thu, 25 Aug 2011, Nathan Tallman wrote:

> Greetings all,
> What are people using for extent measurements of 1-folder collections? We use linear-foot measurements and I'd like to
> include a measurement for 1-folder collections so when we group all of them together, we can get an overall measurement. 
> 
> Specifically in my case, I'm thinking of photo files. Currently, our photo files are shelved kind of like medical
> records, continuous folders on shelving, browse and seek. But the only way to get extent measurements (other than folder
> counts) is to measure the shelf space.
> 
> It'd have to be a small number, 0.02 linear feet or something like that? What's everyone else doing in these cases?
> 
> Many thanks!
> 
> Nathan
> 
> --------
> Nathan Tallman
> Associate Archivist
> American Jewish Archives
> 
>