I've ordered a new shed, which is coming in a few weeks and on ripping out the old shed, I realised the present base is rubbish, so I need to re-do it. The questions is, what to use? I was thinking of plain paving slabs but then I came across the plastic slabs. Basically, they look like the bottom of the old milk crates you used to get. Anyone used them before? I was concerned they'd look rubbish but apparently you can fill anything that sticks out with pea shell or similar...