Do I need to secure a plastic shed to the ground?

Ganga

I also have a plastic shed but with all the gardening tools,my tool box and the barbaque stored inside it will never blow over/move.

PasturesNew

Remember water weighs 1Kg per litre. If there's a sudden storm coming and you're unsure if it'll make it through .... it's worth putting your wheelie bin into the shed then filling it with water "just in case".... as an easy Backup Plan B.

greenbee

Cable ties to attach it to the plastic base. Fill the base with gravel or earth.

JohnB47

Some people are suggesting that heavy items stored in the shed will stop it blowing over but I would make sure the the supplied 'floor panel' is well secured to the sides.

Otherwise, in a strong wind or gale, the sides and top could tear away from the floor panel.