Calculator

Not sure how much stone you need? Below is a guide and a handy calculator tool, but please call us if you would like more advice.

 

 

 

Gravel Chippings

Cobbles

Useful Coverage recommended depth 50mm Useful Coverage recommended depth 100mm
1 bag = 0.25mapprox.  1 bag = 0.12m2 approx.
 4 bags = 1mapprox. 8 bags = 1m2 approx.
1 Bulk Bag (875kg) = 10m2 approx. 1 Bulk Bag (875kg) will cover approx. 5m2 approx.
Units:
Area m2
Vol m3
Weight kg
Bags
 mm  m


 m