Building ground up for a shed

[Pottersfarm]

I would like to add a shed but the only place it can go needs building up alot. Its stoned at the minute but the fall from the adjacent shed is around 6ft at the shallowest point down to 9ft at the deepest. I can get clay soil foc so thinking of using that ontop of the already in place stoned base to around 4ft and compact it solidly then using hardcore for 2ft upto concrete level?
Yes or no?
Alternatively its obviously a huge amount of hardcore. Shed size is 24m x 20m.

 

[David.]

I would never make up ground if I could possibly live with the step.
Was made to put first corn store on built up ground, when we should have realigned it and dug into the slope instead. Consequently the concrete floor is like a jigsaw puzzle.

 

[Pottersfarm]

I would never make up ground if I could possibly live with the step.
Was made to put first corn store on built up ground, when we should have realigned it and dug into the slope instead. Consequently the concrete floor is like a jigsaw puzzle.

Only way I could do that is by putting the doors on the lower side which is a possibility and means I would not need to import any stone and would just have some soil to dig out. However I then need to think about water run off from the main yard as it would effectively run to the side of the new shed where the concrete ends and it becomes stone.

Thanks though as you’ve made me change my chain of thought on this.

 

[Blue.]

If building ground up time is your friend,that and putting it in,in layers.

 

[Wesley]

4-6 inch layers compacted as you go. But still wants a bit of time after ideally as it can still settle a bit if you’ve had to fill up a lot.

 

[David.]

Agreed. I wouldn't concrete the floor until it had settled for a year or two, if possible, not a problem under stock, but no good for grain obviously.

 

[e3120]

It's possible to build up with clay, but each foot or so, wants a winter directly on it.

 

[Derky]

150mm layers pushed out with a blade and compacted with a pad foot roller. As you get nearer to the top i would be putting in a geogrid under quarried stone. This system is how all the bridges are being made up on HS2.

 

[zero]

If you remove the existing stone and dig down to clay so that layers of new clay have something to key into it'll be ok. Each layer needs compacting with dozer tracks or a vibrating roller. And the last shed we built up ground for, think it was 6', we put the stanchions down into the start layer of clay.