Need help with cement.....

21
Found 4th Apr 2009
... have just bought a metal shed 10x12. i need a base that is 317cm wide, 381cm long and 15cm deep. I dont want to use mini mix companies as they are trying to charge nearly £300 for the job.

firstly do i need to have a hardcore layer 3 inches deep then sand compact then 3 inches of cement. OR is its ok just to use cement to fill the hole in?

secondly how many bags of cement do i need. to fill the gap its about 2 cubic metres.... so anybody know how many bags should fill it?

thankyou for all your help in advance.

21 Comments

Cheapest & easiest way is to lay it on top of slabs :thumbsup:

Original Poster

deanos;4827320

Cheapest & easiest way is to lay it on top of slabs :thumbsup:



yeh i dont want slabs though as there is no base to the shed. so i dont want the hastle of beasties and weeds coming through.

Ah right i see :thumbsup:

Original Poster

deanos;4827342

Ah right i see :thumbsup:



thanks anyways.

I put mine on pallets and ply. Not sure how much you'll need if you make concrete but it will be a LOT.

Original Poster

Shengis;4827347

I put mine on pallets and ply. Not sure how much you'll need if you make … I put mine on pallets and ply. Not sure how much you'll need if you make concrete but it will be a LOT.



ok. well it defiently will have to be alot of cement because were using it for our gym stuff which is heavy.

Gave you got access to a flatbed truck or something, when i did my conservatory base it was £100 for the ready mix cement if we collected cash, that was 3x3m of cement

I think you will need to get use to the idea of some beasties in a shed. It will not be without some gaps no matter who puts it up. Sheds are known for having cobwebs and sometimes more.

Cement : 585KG
Sand : 1100KG
Gravel : 2200KG
Water : 320L

Approx ;-)

Original Poster

WoolyM;4827393

I think you will need to get use to the idea of some beasties in a shed. … I think you will need to get use to the idea of some beasties in a shed. It will not be without some gaps no matter who puts it up. Sheds are known for having cobwebs and sometimes more.



yeh i know but not if i keep up to cleaning it daily. i know i want concrete just to make sure that it will be sturdy enough for all the gym equipment. so was just wondering roughtly how many bags i will need.

Original Poster

Shengis;4827411

Cement : 585KGSand : 1100KGGravel : 2200KGWater : 320LApprox ;-)



is that for the measurements i gave?

Original Poster

Shengis;4827433

Yeah.http://www.benchmarkbuildingsupplies.co.uk/calculator.htm



thanks so much for you help. :thumbsup:

Original Poster

deanos;4827391

Gave you got access to a flatbed truck or something, when i did my … Gave you got access to a flatbed truck or something, when i did my conservatory base it was £100 for the ready mix cement if we collected cash, that was 3x3m of cement




i have a horsebox, lol. where did you get it from?

HDUK is so much quicker than getting tradesmen around to estimate, isn't it.

Original Poster

WoolyM;4827462

HDUK is so much quicker than getting tradesmen around to estimate, isn't … HDUK is so much quicker than getting tradesmen around to estimate, isn't it.



lol yeh far quicker and far more helpful people on here that probably know more of what there doing than the cowboys that come round.

make sure ya use sharp sand too

corriessvk;4827452

i have a horsebox, lol. where did you get it from?




From the ready mix place the same place the big mixer trucks come from :thumbsup:

Its alot better than mixing yourself, just put the shuttering up go and collect and pour it in

If you (or anyone else) do end up with it on slabs lay a large sheet of polythene between the sharp sand and cement as the heat build up in a metal shed cause the ground to "sweat" and moisture rise up then form condensation on the roof with then drips on anything you have in there and the humidity to cause mould.

Original Poster

harlzter;4827930

If you (or anyone else) do end up with it on slabs lay a large sheet of … If you (or anyone else) do end up with it on slabs lay a large sheet of polythene between the sharp sand and cement as the heat build up in a metal shed cause the ground to "sweat" and moisture rise up then form condensation on the roof with then drips on anything you have in there and the humidity to cause mould.



thanks for that advice.

Original Poster

thanks to everyone for all your help. :thumbsup:
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