How much do I need?
Working out how much product you need can be tricky and some people have no idea where to begin. If you follow our simple steps below you should be able to easily and accurately estimate the amount of product required to complete your job. We also have a handy calculator to help you. Use our online calculator here.
The first and most important thing you need to do, is work out how many square meters you have to be covered or filled. This is done by measuring the length in meters and the width in meters. Once you have these 2 lengths, you then need to multiply them by each other. This will give you your approximate square meter area. So the length x width = square meters. This will be easy if you have a relatively square area but if your area is a bit of a strange shape you may need to do your calculation a couple of times for each section and then add them together at the end.
Once you have your square meters you then need to decide what depth you will need. This depth will vary depending on the job and product you are using. Below is a guide for most of our products. Once you have your desired depth you then multiply this by the square meters for example
24 square meters x 0.05 meters (50mm) will give you 1.2 cubic meters.
So to conclude your equation will be width x length x depth.
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Product Depth Guide
Mulch
Minimum 50mm
Optimal 100mm
Road Base
Driveways & verges 100mm
Pathways 50mm
Decorative Stones
Minimum 30mm
Recommended 50mm
Compost & Manures
Minimum 50mm
Optimal 100mm
Soil Conditioner
Minimum 50mm
Optimal 100mm
Special Lawn Mix
Planting 50mm
Top Dressing 10mm
Pebble Estimator
Below is the estimated number of kilos of pebbles you will need to cover a
1 square meter area for different sized pebbles
20-40mm
Single Layer 30kg
Double Layer 50kg
50-70mm
Single Layer 40kg
Double Layer 75kg
30-50mm
Single Layer 35kg
Double Layer 60kg
70-90mm
Single Layer 45kg
Double Layer 83kg
River Stone Estimator
Below is the estimated number of kilos of river stone you will need to cover a
1 square meter area for different sized river stone
10-20mm
Fine River Gravel
Size: 10-20mm
Bulk Density: 1.5 Tonne / Cubic Meter
Coverage: 80Kg / Square meter
40-100mm
River Pebbles
Size: 40-100mm
Bulk Density: 1.5 Tonne / Cubic Meter
Coverage: 100Kg / Square meter
20-40mm
River Gravel
Size: 20-40mm
Bulk Density: 1.5 Tonne / Cubic Meter
Coverage: 80Kg / Square meter
100-300mm
River Cobbles
Size: 100-300mm
Bulk Density: 1.5 Tonne / Cubic Meter
Coverage: 140Kg / Square meter
Conversion of 6x4 trailer load
to cubic metres
1 Scoop
=
1/2 Trailer Load
=
0.350 Cubic Meters
3 Scoops
=
1.5 Trailer Loads
=
1 Cubic Meter
2 Scoops
=
1 Trailer Load
=
0.7 Cubic Metres
6 Scoops
=
3 Trailer Loads
=
2 Cubic Meters