Jeff D. wrote:
I'm building a wall of storage shelving for my 45 record collection
(appx. 20,000). The records are stored 200/box and each box is
16x8x9, weighing 15lbs. Will 3/4" plywood shelving 4 feet long
support this load without deflecting, each shelve will be loaded to
75lbs with supports on the ends only.

Plug in the numbers here and see...
http://www.woodbin.com/calcs/sagulator.htm

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dadiOH
____________________________

dadiOH's dandies v3.06...
....a help file of info about MP3s, recording from
LP/cassette and tips & tricks on this and that.
Get it at http://mysite.verizon.net/xico