"Danny Monaghan" wrote in message
...
Just about to take delivery of an Intex 15' diameter above ground pool -
one of the metal frame and liner type. As the garden slopes, I need to
create a level decking to sit the pool on.

Snip
For every meter of depth of water in your pool you will have 16 tonnes.
Like Al suggested, consult a structural engineer.
Baz