Above is the sail I purchased on ebay for $20.
Postage was about $80 so all up $100 for a 7m x 8m sail.
So far so good...
The posts were from a steel supplier
The sail went up in 3 corners but we needed larger turnbuckles, so down it came.
Fast forward a few days to a massive windstorm which caught the sail & slammed it down on the tomato posts, creating quite a few holes in it.
Patched the sail, put it back up, only to have another gigantic windstorm turn up.
It was so rough that the posts started moving & the concrete cracked.
Down came the sail.
Many weeks later Les pulled out the posts, busted the old concrete away, then we re-dug the holes & put 4 bags of concrete in each.
We also braced the other 2 posts which couldn't come out since the had been used in the colourbond fence.
Last night the sail went up for the 3rd & final time.
The garden still receives all the morning sun & most of the afternoon, just not at midday & until about 3pm.