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     Posts: 5,207
 Join Date: Jul 2001
 Location: In the wilderness
 Mood: All that is necessary for the triumph of evil is that good men do nothing
  
    
     Why not ask the customer the question, after all you are quoting to "store" the things, not learn how to use them. 
 
 Regardless of their reply, if they are back-up tapes you gonna need to look after them, and not just secure em. That will mean dust and damp resistant storage. You will probably find sealing them in poly bags with some dessicant and keeping the bags in boxes would work. Size wise, I doubt they would be bigger than 18 inch dia reels by maybe an inch wide.