Hey everyone, we're looking to buy a cheap wooden shed for bike storage. It's 1830mm wide x 750mm deep x 1450mm high.

The space is our off street parking spot.

Over the 1830mm length, there's about 140mm drop.(4-5 degree angle) And over the 750mm deep it would be about 40mm droo.

It can't be anything permanent. But we're stuck on a way to level the shed.

The shed has no floor, it's open on the ground inside to allow water to drain out.

Any ideas on how to level this shed on the concrete?

All of the feet/shims etc I find that look somewhat suitable aren't big enough.

I'm in the UK.