These are UK spec Military shelters built by Alaska Structures.
They measure 20ft wide by 26ft long and 10ft high.
They are un-used but have been in storage and are a bit dusty.
They are built to last and originally had 10 year warranty.
Although frame is 2" box section - it weighs less than 300kg.
Very easy to put up and extremely high quality.
I have 4 of these and they can be joined together to make a longer shelter.
Viewing very welcome near Northampton