In article ,
Andrew Gabriel wrote:
Copper isn't very strong. It will all bend horribly the first
time someone leans on it.

Depends on what stresses it's subjected to. I needed to suspend a TV
monitor from the ceiling, and although wall mounting kits are readily
available and cheap, ceiling mounting ones aren't, and are desperately
expensive from pro suppliers - almost as much as the monitor.
I made one out of 15mm tube, using end feed fittings where needed, and
not only does it look very good, but it's well up to taking several times
the weight. Total cost under 20 quid.

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*My dog can lick anyone

Dave Plowman London SW 12
RIP Acorn