[OT Know How] How Much Sand to Cover 12 sqm to depth of 20mm

[John the Monkey]

As title really.

I have some stuff to do in the garden, part of which will require a layer of sand to cover a 12 metre square area to a depth of 2 centimetres.

However, sand is sold by weight, not area, and I'm having the very devil of a job figuring out how much I need to get from the builders merchant. Anyone done this, and have a handy ready reckoner or similar to share?

 

[Will1985]

It depends on the grade of sand. The volume of that hole is 28.8L.

If the sand has a density of 1.8g/ml (a type of builders sand from a quick google), you will need approximately 52kg.

 

[John the Monkey]

Thanks Will.

I'd buggered up the measurements (post now edited, Will's calculation is correct for the figures I provided at first). Looks to be half a ton or so for sharp sand, from what I can make out.

 

[Will1985]

Now you just make me look stupid!!

 

[Will1985]

OK - 240L, approx 430kg sand using same assumption.

That should keep your arms in shape!!

 

[iLB]

my calculations tell me it could be anything up to 6 tonnes...

do you mean 12m x 12m x 0.02

or something like 3m x 4m x 0.02 ??

 

[Sh4rkyBloke]

As title really.

I have some stuff to do in the garden, part of which will require a layer of sand to cover a 12 metre square area to a depth of 2 centimetres.

However, sand is sold by weight, not area, and I'm having the very devil of a job figuring out how much I need to get from the builders merchant. Anyone done this, and have a handy ready reckoner or similar to share?

Sand pit for the kids, eh? Good luck.

 

[Will1985]

Sand pit for the kids, eh? Good luck.

At 2cm deep?!?! He'd be the stingiest father around!!

I guess that it is part of the base for a patio...

 

[Sh4rkyBloke]

Good point, hadn't fully appreciated the lack of depth (no comments about me, thanks).

 

[John the Monkey]

my calculations tell me it could be anything up to 6 tonnes...

do you mean 12m x 12m x 0.02

or something like 3m x 4m x 0.02 ??

3m x 4m x 0.02m is the chap...

 

[iLB]

3m x 4m x 0.02m is the chap...

ah good good, i thought 6 tonnes sounded excessive

 

[zacklaws]

Try this website to calculate it, but it does not work on my system but it may on yours:-

http://www.diydoctor.org.uk/projects/volumes.htm

If it does not work, just google "sand calculations" but I find non of them work on my system but it might be just I am lacking some Java function or something similar.

Try this one it does work, but it is in feet and inches

 

[Haitch]

JtM,

I've just dug a pond in the garden. About 20' by 7'. You give me half your Fantasy Giro points and it's yours free to take away. As much as you want. Free.

 

[Haitch]

Noticed you were metric. That's 6.5m x 2.05m x 1.0m. Free. Much as you want.

 

[John the Monkey]

Thanks for the offer Alan...you probably want someone a bit more local than Crewe though!

Anyway, in case it helps anyone else, this site;

http://www.pavingexpert.com/calcall.htm#focus13

(Found via the "sand calculation" google tip)

Has a host of different calculators for different jobs, and aggregates - gives me .4 tonnes for my area & coverage.