Shed Base 12ft by 8ft

[SheepyDaz]

Hey there.

I'm trying to make a base for a new shed which we have just bought.
I used to do labouring for building works, so I have a little knowledge about floors, bases etc. but I'm not amazing at the maths.

Could someone tell me how much ballast and bags of cement I would need for the base.
I don't need the scalpings as where the base is going, you can only dig down 4-5 inches and there is already hardcore there.
I will just level it off an go over it with a wakka plate.
I will make the frame for the shed 12.1 ft by 8.1ft just to make sure it fits perfect.

Thanks in advanced

 

[RedHerring2]

How thick do you intend to make the base, 4"(100m), 5"(125mm) or 6"(150mm)?

And just to be pedantic, do you mean 12.1 ft or 12ft 1in? Same for the 8.1ft or do you mean 8ft 1in?

 

[noseall]

At 100mm thick (4") you will need 1.8 tonnes (get 2 tonnes) of ballast and 12 x 25kg bags of dust.

 

[Richard C]

An alternative approach;

It’s only a shed; it’s not that heavy & isn’t going anywhere, especially on firm ground. I’ve had/erected many over more years than I’m going to admit to, many larger than that. All I’ve ever done/do is dig out 50mm & lay either 1.8m x 0.3m reinforced fence concrete gravel boards or 600 x 600 x 50mm flagstones (both seem to work equally as well) over around 25-30mm of compacted sharp sand which leaves the slabs around 25mm higher than the surrounding soil/grass. Largest shed at my current property is 20 x 8ft & has been up some 7 years; sheds at my previous property had been there for 18 years when I left & at least one is still there now (7 years later) but you must keep the roof felt in good condition & exterior preservative maintained. I also cover the bottom of the shed base with roofing felt; it’s cheap enough & keeps the shed base nice & dry.


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[SheepyDaz]

Thanks for you replys guys.

Yes i ment 8ft 1in :S sorry forgot to put that in.

 

[stevehuws]

I hope I'm not hijacking this thread...

steve

edited for hijacking

 

[Richard C]

I hope I'm not hijacking this thread, but I'll soon be building my own shed so the question is related.

But it's still somebody else’s thread & of course you’ve hijacked it

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