# Patio project - how much hardcore will i need?

Im building an 18 square meter patio and will be putting down about 2 inches of hardcore.

Is there an equation to work out how many KGs/Tonnes i will need?

Thanks

Is there an equation to work out how many KGs/Tonnes i will need?

Thanks

Hope that helps..

Edited by:"ukmonkey" 16th Aug 2010You require about 0.9 cuic metres of hardcore, from what I know 1 cubic metre = 2 tonnes so I say you need 2 tonnes.

abt 2 inch deep i think. we went down 5 inch from the damp course then had type 1 compacted down then layer of cenet with 40mm thick slabs on it. took 2.5 tonnes of type 1 and abot just over 1 ton of sand.

2 inches is approx. 51mm.

18 x 0.051 = 0.92cu m.

So if you round up, you want to cover an area of 1 cubic metre, so you'll need 2 tonnes of hardcore.

Simples....

Hmmmm... I think he might need to stretch it to 52mm !

What are the actual sizes Jaybird?

WOuld help but its broken today!

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