1. How do you go about drilling big holes in RSJs?

How big?

Not sure yet, but say 10mm holes through 8mm RSC.


2. Is it possible to cut RSJs?

Yes, but far more sensible to buy them cut to the right length.

I'm just wondering if stock lengths will be cheaper than custom-cut lengths.
What would you use to cut, say, the above?


3. What are 'RSAs'? (Reinforced Steel Anchors?)

4. What is 'DURR BAR'?

5. What is 'RHS'?

(I could probably have found out 3,4 & 5 by bothering my arse to search
the
net, but hey...)

Bingo!

Aye, cheers... :-)
Found this site anyway, which might be useful for others...
http://www.buildingcatalogue.com.au/.../acronyms.html

Andy