"IMM" wrote in message
...

"Dave Plowman (News)" wrote in message
...
In article ,
IMM wrote:
of corse it makes a difference! a joist with a smoothly shaped "U"
will be far stronger than a straight cut slot.

nope. Regs say no problems with a straight cut. Duh!

Which regs?

The rugby union regs.


Might as well have been !