Sleeper shed base?

26 Jan 2021
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United Kingdom
So I'm looking to put a 6x8ft wooden shed on an empty bit of land I have in my garden and I was wondering if laying a few sleepers directly on the dirt would suffice for a base? I've done some reading and lots of people seem to suggest putting down a gravel base, then sand/cement mix and then patio slabs on top, but to me it just sounds like overkill for a shed I'll just be using to store garden stuff. My garden is also very steep so I'd like to avoid having to move a ton of gravel up and down the steps by hand. All I'm worried about really is the sleepers sinking over time.
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I laid 2' x 3' 'council slabs' on a bed of mortar and used old railways sleepers to sit on top. There is a lot of weight in that shed and it hasn't moved in nearly 7 years.

I wouldn't put the sleepers directly on the soil -- not through fear of rotting, but through fear of them sinking.
Along the same lines as slabs, we used a plinth system on a large log cabin - several suppliers around but we used

You would potentially only need 4 - same principle as ground screws but they work on distributed load instead of going into the ground so virtually zero impact.
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I'd have used some gravel beneath the sleepers at 600 centres or whatever just to be able to get them all level.
I have quite a steep sloping garden, and used a hand auger to make holes at corners and in between. It saved a lot of concrete compared to a flat slab. make a 6" hole to below the frost line, then fill with sand/cement/hardcore. I filled dry and watered them. shed hasnt moved.

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