[Shop-talk] 2 by's for truck ramp

[Jim Franklin]

20% more?

For actual numbers, you can exptrapolate from joist span tables and  
the live load they can support, except the data is only relevant to  
the "on edge" orientation.

jim

On Aug 26, 2008, at 10:00 AM, john niolon wrote:

> I wonder where the specifications for tensile strength are ???  
> looked around
> on the internet ...found lots of specs on 'manufactured wood"  but  
> nothing
> on a common pine 2x10...
>
> I'm sure grade enters into the formula and percent of water and  
> greeness..
> (hey !!  I'm politically correct...I'm talking greenness)   but I  
> wonder how
> much stronger (resistance to breaking across the wide face when  
> loaded) a
> 2x10 is compared to a 2x12...  ???
>
> anyone hazard a guess
>
> john