20x10 Shed, need base!

snappyfish

snappyfish

snappyfish

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So as title I need a base for shed size 20ftx10ft decided on this tiger shed

It seems it's fairly easy to make a concrete base? It seems a conrete base is recommended over slabs?

But how do I work out materials cost for this size base?

Thanks
 
That's a big base, knocking it up yourself will be tough, have you got access for a cement wagon? at 150mm deep it's 2.7 m3, you might want to think about some mesh reinforcement and a proper depth and excavation down to decent ground.

You's probably pay £85 - 100 m3 for wagon concrete plus £30ish m3 for the empty / part load.
 
I've just built a 10x14 base.

Had to dig a little deeper due to a lot of roots, and an old base. But off my head I've used;

- 2x4.6m, and 2x3.6m 47x150mm treated planks (frame).
- 14x 600mm wooden stakes.
- 2x bulk bags MOT type 1 (total 1,700kg)
- 300Kg cement
- 2x bulk bags of Ballast
- 300Kg building sand
- 1000gauge DPM sheet.

A load of broken bricks went in first too, as I couldn't face buying\moving a 3rd bag of MOT.

- 1x whacker plate hire
- 1x Bull float hire
- 1x Cement mixer hire.

~50 cups of tea.
 
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maccapacca is right, that's a pretty significant base. Whilst concrete bases are great, if the land is reasonably level I think I'd go for a timber frame of some description mounted on concrete posts/piers. What is the shed being used for?
Most shed bases are hugely over engineered for what they actually do.
 
Lopéz said:
maccapacca is right, that's a pretty significant base. Whilst concrete bases are great, if the land is reasonably level I think I'd go for a timber frame of some description mounted on concrete posts/piers. What is the shed being used for?
Most shed bases are hugely over engineered for what they actually do.
Click to expand...

Will be used to store a motorbike, fishing tackle and general other bits and bobs.

Need to be able to use as a general repair / maintenance area for motorbike and push bikes so need some spcae in there to move around in. Tools etc.
 
I have recently done this but 10x14 for motorbike/workshop . I felt the cost and work involved in doing a full concrete slab was to expensive and its hard to get such a large base flat unless you get help from someone used to putting down such large slabs .

What i did was lay 6 rows of concrete blocks , each in there own trench with a 3" layer of cement to level into and then reinforced the floor to sit on the blocks .. Its super stable .. Keeps the floor of the dirt.. great drainage and if i ever need to move the shed i can just knock the blocks out .

Cost was 1 x 12 yard skip for hardcore/dirt and the blocks are a few quid each . took a few days to dig it all out and make the trenches .. another day to reinforce the floor and soak it in creocote . I laid damp proof membrane over the blocks and filled between them with weed cloth .

Been there 6 months now and 0 issues and still looks great !!

The blocks i used were these
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15197986597_13b77c1a87_b.jpg


15384180492_9d309aaed3_b.jpg
 
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Ah thought you could work that out :P

skip was £125 (dirt only)

blocks were £3 each x 35

3x2 to reinforce the floor was £6 a length x 6
 
I recently done this too...

- Laid 4" subbase, compacted
- 4" concrete on top
- Rows of engineering bricks on top
- Damp proof membrane on 4x4 timbers - shed floor
- 2x4 for sides / roof

Thing is solid. Proper solid.

I wasn't impressed by the quality of any of these sheds online (or the prices!) so I built my own, basically so I could just overengineer the **** out of it :D
 
Also bear in mind that a shed this size will require building regulations approval if it is within 1m of a boundary given it is greater than 15m2. E.g. Snaggle's shed likely required approval if the fence next to the shed is his boundary.
 
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