We built a new Redpath 7.5m Arch greenhouse with a 2.5m post height in the middle of a paddock in the Green Park area (near Lincoln). The structure is 15m long, with two roll-up walls and two gutters.
Interesting Twist to the Tale
After we had drilled the 1.2m deep by 350mm diameter footing holes, mud bubbles quickly rose to about 400m from the top. We had to leave the site for three months to let the paddock dry out before continuing with the construction process.