Oriented Strand Board

[structuralnerd]

Does anyone know where I can find the shear capacities of oriented strand board as a horizontal diaphragm attached to wood joists?

 

[boo1]

http://www.apawood.org/

 

[structuralnerd]

I looked at this website and I couldn't find any tables that talked about shear capacities. Is there a specific document I should be looking for?

 

[blake989]

Ch 23 International Building Code. It will based upon Panel Grade, not panel construction. The only difference that I am aware of with OSB is the strength axis is the axis parallel to the OSB face strands, usually the long dimension of the panel unless otherwise indicated.

 

[MiketheEngineer]

Like Blake989 said - IBC - Chapter 23 - but it MUST be APA rated. You can buy unrated OSB and/or plywood. Be careful

 

[blake989]

to add to the above, you can specifically drill down OSB values in the 2005 Manual for engineered wood construction, chapter 9... and in the 2001 NDS supplements.

 

[boo1]

APA updated there guide see:

http://www.apawood.org/level_c.cfm?...s&pD=Yes&pF=Yes&CFID=6115998&CFTOKEN=53680907

 

[DaveAtkins]

If APA rated, OSB is no different than plywood.

DaveAtkins