There is a reason, a few in fact.
I want to be able to site the coop on the ground if required. This means the coop needs to be detachable from any base it sits on.
The next Nestera option for this coop going up the range does provide legs but the legs are not long enough. It costs £80.00 more than the basic coop.
The third option is just about high enough but only encloses two sides. I want three sides closed. It costs £130.00 more than the basic.
With the sheet of recycled plastic I linked to above I could close in three sides of both the Solway and the Nestera, almost.
I want to use plastic posts to support the coops. This will push the price up depending on post dimensions.
Finally, I want the extra weight a three sided base with say three inch square posts would provide.
While the Orkney winds seem constant and strong giving that dramatic leaning tree and bush looks, at the field we get wind gusts of 50mph often and up to 70mph rarely. Not much stays upright in the wind tunnel that cuts across the field SW to NE. With the wind one doesn't know if a structure will stay standing until it doesn't when the wind blows hard.
I've had coops, wooden ones which makes a difference because they break apart) blow over. Lost a few in Catalonia and some broody coops just swept off the ground Hertfordshire. Not good if there are chickens in it.
I'm pleased to write, the Solway coop and the extension haven't looked remotely bothered in winds that are taking tiles off house roofs. The coop itself weighs 62K and the base a further 25K. The coop extension has a vent side to help reduce wind pressure under the extension.
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