Working out how much you need

The amount of stone you'll need varies depending on how deep you'd like it to be. A thin layer will cover the area, but a thicker one may stay in place better and help reduce weeds. Here's our quick guide to doing the maths. . .

 

Coverage at 40mm depth

Use the chart above to calculate how many large bags of decorative aggregates you will need. For example, a 4m x 3m area requires approximately 36 large bags.