Re: Lightweight Theater walls

On Fri, 23 May 2008 19:38:53 +0100, <WilliamMLovell@[EMAIL PROTECTED]
> wrote:

> "The torsional stiffness is very low though"
>
> Hmmmm.. Not sure I agree with that but I have no numbers.
>
> I suspect that 12 foot slotted angled steel would have higher
> torsional stiffness than 12 foot x 1 inch x 3 inch wood (mentioned
> earlier)
>


It may, but if you attach it to the edges of a sheet of ply the lack of  
stiffness in the corner joints makes it softer than a properly jointed  
wood frame.