In article . com,
"deano" writes:

Have just emailed them with the specs.
I'll be interested to see what they say... methinks when something
enters realm of "Street Furniture", client's jaw hits the floor

You'll find the double ribbed corrugated ones are much bigger
and more ugly close up than they appear when driving past them
on the highway.

What about using something like a scaffold pole?

--
Andrew Gabriel