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| I've seen all the calculators and articles about shelf stress and sagging-ness and it just doesn't seem to compute in my head.
I have several 30" oak wall cabinets. The carcasses are oak plywood. They have center mullions, which I want to remove. What type of wood (or material) should I use for shelves that won't sag? How thick? That's all I want to figure out.
What would you recommend?
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Follow-Up Postings:
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| Make back rests(cleats) on the rear insides of the cases. Add front supports under the front edges of each shelf. That will allow the use of almost any 3/4" stock for the shelves and minimize any sag. |
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- Posted by sombreuil_mongrel (My Page) on Tue, Jan 3, 12 at 19:09
| Hard maple 3/4" thickness is very firm. Poplar 3/4" thickness Is slightly springier, but still acceptable. Yellow pine 3/4" thickness is as firm as maple. White pine (ponderosa from HD)is the springiest, but still within the acceptable range, just a bit weaker than poplar. I used a 28" span, 30lb load (default) and 3/4" thickness at the Sagulator site. A 28" span is not very much, and almost any common wood will be fine unless you're shelving hardcover books or bullion ingots. Casey |
Here is a link that might be useful: sagulator
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| Thank you, everyone. That's the information I was hoping to get in just plain English. Sombreuil_mongrel, that was my last calculator which made me a little crazy. I can do exactly as advised and have yet another wall of cabinets together. Just gotta worry about doors! Thank you all for your clear help! |
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| Casey, I just reread your last line. [whisper] Who told you about my ingots? C. |
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