The message
from "Keith Pritchard" contains these words:

We live in extremely exposed coastal position where winds get up to 60+mph
on occasions.

We would like to erect a greenhouse sized approximately 8ft x 10ft!

Most of the bad weather i.e. strong gusting winds, come from the south west.
Fortunately the garden is completely sheltered from that side - but almost
totally open from the east, with a stone wall about four feet high, about
three open paddocks and then a drop down over the cliff! The north and
south sides of the garden have shelter some within about 50ft in each
direction.

Is there any greenhouse on the market designed to withstand high wind (when
the door and vents are all fully closed)? The Robinson Riviera is promoted
as being 'built to promote the toughest weather conditions... and is
apparently 'constructed with significantly more aluminium than most other
greenhouses of a comparable size'. Is this likely to be of any use here...?

I recommend Robinsons GH's for exposed windy places...we had one that
size in the last garden, which was 18 yrs old, still as good as new, and
had never lost a pane to weather. It withstood gales of 80 mph. on
bleak high exposed moorland just south of the Scottish Highlands. Iirc,
Robinson's used to claim that many of their GH's survived the great
hurricane in England.

We made an outline concrete foundation (with shuttering) the same size
as the base then bolted the GH onto it.

Janet.