We need some proper serious wisdom here and I promise I won't turn it into a Thread.
Suppose you dig out some 'oles and put in concrete pillars in a proper and serious way.
Then you realise you actually need another 5 feet . Can you safely and nicely extend them ? Or do you need to dig it all up and start again ?
Here's the real situation ...............
Yes it would indeed save lots of time and mess and no doubt the Thais would happily bodge it all to work .
But I'm not looking to bodge around even though it's not for me so I don't care .
Can it be done ? Is it done ? Fairly nicely ?
With thanks from ....
Wasp