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Unread 12-12-2020, 07:05 AM   #17
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Join Date: Sep 2008
Location: Staunton, VA
Posts: 208
Am I understanding this right that if I can get that 2/3 of the span or put in a post and support, then the existing joists are sufficiently reinforced... *then* I could sister in new joists that only run the length of the room to be tiled to level the floor and make it a flat plane? (Basically two different solutions to the two problems?) The long joists provide the needed rigidity, and the short ones are tied into the long ones?
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