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Old 01-05-2004, 04:34 PM   #2
Steven Hauser
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Join Date: Mar 2003
Location: Greenville, South Carolina
Posts: 5,156
Hi there Rusty,

Without seeing the floor I would suggest putting a post to split the 15' span down to 7.5 feet. This would be good for all ceramics and most stones.

The other idea is to double up and "sister your joists". This would be adding a 2x10 along the span of the joists.

This would be good for 12" ceramic or less but not stone.

The engineers will be along soon enough to correct any confusion I create.

Best wishes, Steven
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