Thanks for replies. Someone mentioned difficulty viewing initial attachments, so I've attached pdf this time.
http://files.engineering.com/getfile.aspx?folder=a4ea7f71-2bab-4d90-824d-45d358030431&file=inclined_strut.pdf
I did come across the following related threads:
http://www.eng-tips.com/viewthread.cfm?qid=253297
http://www.eng-tips.com/viewthread.cfm?qid=273931
The question I have, which did not appear to be explained (or at least to the point that I was not sure), was if the inclined raker should be...