01-21-2006, 08:33 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,593
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joists
Actually jacking them with a removable lally column may be beneficial because if you view along the long edge you'll probably see "camber" or a slight bow in the planks. Another term is "cupping." Putting this "bow" downward then jacking it up flush and carriage bolting it together with the sister joist will help tremendously. [my opinion]
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