Replies

1. 
   Soultrain | Sep 08, 2005 05:03am | #1

   I believe cross bridging is required at 8ft centers, so the 7ft span would be okay, but the 12 foot span would require bridging.

1. 
   Dundee | Sep 09, 2005 05:15am | #2

   Soultrain,

   Big Thanks for the reply.

   Dundee

1. 
   bosn | Sep 12, 2005 01:33am | #3

   When is it OK to take bridging out and how much can you take out?  Example:  only for duct and lighting and other similar items being installed if the bridging on either side is intact? 

   And what is the difference between cross bridging and solid bridging..structurally. When and why is it specified?

   Is the bridging in a old house less important than that in a hew house.  i.e.  the wood has stabilized?

    

   Just wondering...If you haven't drawn blood today, you haven't done anything.

2. 
   MikeSmith | Sep 12, 2005 01:44am | #4

   at the risk of being proven wrong....

   i don't think bridging has been required by code for many , many years

   and there are substitutes for bridging..

   plywood subfloor nailed and glued

    plywood subfloor with furred ceilings below

   cross -bridging

   solid bridging

   in terms of stiffening floors

   there is some debate

   here's how i rate them: from stiffer to less stiff......

   plywood subfloor nailed and glued with furring below

   same floor with solid bridging, no furring

   same floor with cross bridging, no furring

   same floor with no furring or bridging

   plywood floor not glued

    

    

    

   Mike Smith Rhode Island : Design / Build / Repair / Restore
1. 
   Dundee | Sep 12, 2005 02:42am | #5

   Mike,

   Thanks for the break donw on bridging methods and their potential stiffness.

   Regards,

   Dundee