Hi all,
I happened to be in Topps Tiles the other week and they had a new range of porcelain tiles 20mm thick which you can use as patio slabs. The interesting thing was that you could buy plastic adjustable feet to sit them on.
Never heard of this before but after a bit of googling,this seems more common than I thought and more over seems like you can fit patio slabs this way too. In my scenario, this would be perfect as I have a concrete base which is around 80mm below the finished level. Also means you can lift them and sell on of you want to change them.
An example of them is here
Thanks
Lee.