Posted: 10/05/2012 at 13:15
I can tell you that if you put it on the pea shingle it liable to sink but if you mixed it in with half a bag of hardcor and chucked in a couple a bags of sharp sand and a couple of shovels of cement you could make a nice solid bit of concrete for a hard standing for your shed.
all you have to do is measure the shed by the lengh and the width get some timber the same lengh to all 4 sides and make like a box on the ground you would get away with 2"x1" then run wooden steaks down the outside of your rectangle to stop the frame from popping mix your agregate on the basis of 2 to 1 thats 2 sand 2 hardcore and 2 pea shingle and 3 cement then when all the mix is in get a piece of wood slightly longer than the width of the frame and run it down it lengh in a chopping motion this will level the mix evenly in your frame.
make sure that the frame is slightly off level as this makes any water from rain run away when set