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treebeard

10:20AM | 02/23/03
Member Since: 01/14/03
265 lifetime posts
If the OP author was seeking advice on whether blocking would provide the same effect on the structure of a floor frame as bridging, then y'all have answered the question, many times. Blocking and bridging do the same thing.

But, if the question in the OP was referring to taking the "bounce" out of framed span, the answer is pretty much no. Although bridging and blocking will perform such as to make the joists under a local live load react in similar fashion, not racking or twisting, they will still deflect, although somewhat less than they would individually. They'll react a little more in concert with each other. But, if they're not designed adequately to make the span, they'll still move up & down (bounce), and blocking or bridging won't make a significant difference.

[This message has been edited by treebeard (edited February 23, 2003).]

Altereagle

05:14PM | 02/24/03
Member Since: 12/27/02
545 lifetime posts
Back to the original question...

"Will adding 2x6 blocking, perpendicular to the floor joists provide the same stiffening properties as 2x4 diagonal bracing?"

No...

It's better to solid block.

2x4 diagonal bracing, either applied to the bottom of the joist diagonally across the joists, or as cross bracing will not have the same effects as solid bridging does.

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