PART 1: Creating the foundations for the greenhouse
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Although a keen DIYer I didn’t fancy tackling foundations and brickwork, so we used a contractor for this part.
The footings were dug about 18 inches deep, and concrete poured to create 9 inch thick footings (deeper and thicker for the rear wall) upon which subterranean brickwork would start.
This depth means you don’t keep hitting a foundation strip when you are digging the border.