How many Tonnes of silica sand for a 20x40 arena??

[nicola172]

Hi I am looking into re surfacing my outdoor school. I intend to put down silica sand this year and next summer top it up with rubber. Is there a way of working out how many tonnes it would take to cover the school 4inch thick???

 

[Delta99]

About 180 - 200 tonnes if memory serves correctly (built from scratch)
Ring up one of the suppliers, they should be able to give you an idea.

 

[Spring Feather]

80 cubic metres I think.

 

[Mrs_Wishkabibble]

I may be wrong but I think it is 120-140 tonnes.