Strong shelves for bookcase

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Old 03-01-09, 04:30 PM
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Strong shelves for bookcase

Building bookcase 6' tall x 54" wide need to know how to make shelves 14" deep by 54" long strong enough not to bend in middle. I plan to attach to the back and sides of the bookcase. Bookcase is 3/4 " plywood birch. I would like not to use a middle brace. Thanks for any help. Dwcat
 
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Old 03-01-09, 04:33 PM
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That's a pretty long span. I think you would have to double up the plywood to get enough stiffness and maybe even add a hardwood face frame edge to the front for good measure.
 
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Old 03-01-09, 05:19 PM
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I agree, a hardwood face frame on the cabinet, and carry forward the face frame to the edge of the shelves. You have to cover the plywood somehow, just make it 1 1/2" wide and it will add substantial support, especially if you plan on supporting it on the other 3 sides.
 
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