Stiffen floor trusses properly/effectively

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  #1  
Old 04-17-06, 12:41 AM
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Join Date: Apr 2006
Location: Greensboro, NC
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Question Stiffen floor trusses properly/effectively

I am trying to remove some seemingly excessive deflection from my floor system. I have 12" floor trusses on 24" centers with 3/4" plywood subfloor. I have a china cabinet that rattles excessively even when my 105 lb. wife walks nearby. The cabinet sits just about in the center of a 14' span. Any suggestions?
 

Last edited by cstippens; 04-17-06 at 04:34 PM.
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  #2  
Old 04-18-06, 06:10 AM
Join Date: Dec 1999
Location: South Dakota
Posts: 3,140
My guess is that it is due to the 24" floor joists on center. I always install floor joists 16" on center and in some cases 12" on center. Also you should have tongue and groove sub flooring. There is a strengthening system, whose name escapes me at this time that strengthens floor on 24" center. Maybe my old brain or someone can give the name of the system. If I remember it it will tell you. Good Luck.
 
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