Thanks for your response.
The reason for the big drop in height is I wanted to remove the clay soil down to the footing which is where the mortar had ...
Looking to backfill my trench but not 100% sure on best practice. It goes from 500mmm depth from one end to 1.6m depth the other over a 17m run. The t ...
The ground is undulating and I have approx 190mm to work with as my finished height. I would like to build it without using footings and use the plast ...