Decorative Stone

[mr_doubtfire]

How many one tonne bags of 20mm gravel will I require to cover 54 sq mtrs of my garden to a depth of approx 40mm?

[whiskeryron]

http://decorativeaggregates.com/gravel_calculator.html

[redman41]

Very useful site, whiskeryron.
Invaluable actually

[Sycamore3House]

Multiply to length of the garden by the width of the garden by the depth (400mm) of the garden. This will give you how many cubic metres you need.

[mr_doubtfire]

Many thanks, whiskeryron. The online calculator worked it out to be 4 bags.

[Mick-the-Miller]

Well, I make it that you need 21.6 cubic metres - to work out how many bags you need you would have to know the cubic capacity of each bag.

I hope this helps!