On Sat, 04 Dec 2010 17:32:17 GMT, garage woodworker
wrote:

My son wants a no-frame bookcase 14" x 39.5" x 52.75" from either 5/8" 11
ply Baltic Birch Plywood or 3/4" 13 ply Baltic Birch Plywood. Will 5/8"
really hold up? I have my doubts.

http://www.finewoodworking.com/Skill....aspx?id=28101
http://www.woodbin.com/calcs/sagulator.htm

'k, here's your answer for everything BUT baltic birch plywood.
Sawwwwwwry.

-Zz