Cheap particle board for shed lining

Hi all, just a quick heads up. Sam's Warehouse at Moorabbin Airport DFO is closing down. They are selling sheets of 18mm particle board 600mm×1800mm at $2 per sheet or 3 for $5 or 10 for $10.

I picked some up yesterday and was told by the staff that there are approximately 700 sheets available.

I reckon they'll be great to line the shed with.