Area / Volume / General Calculation
 There are 1000 litres in one cubic metre
 1 cubic metre of product covers 10 square metres to a depth of 100mm
 20 x 60 litre bags of product make 1.2 cubic metres
 A roll of turf covers 1 square metre. (0.6m wide x 1.7m long)
 1m3 mulches / soils / Turf Gro covers 25m2 @ 40mm OR 50m2 @ 20mm
 1 tonne sand / aggregate / pebbles covers approx. 12m2 @ 50mm
 Wet premixed concrete  0.5m3 = approx. 1t
 Concrete mix  approx. 9 builders barrows = 1m3
 1 tonne of brickies sand and 10 x 20kg bags of cement will lay 1000 standard bricks or 600 200series blocks
Working out m2 

Length x Width = M2 
e.g. 6m x 5m = 30m2 

Working out m3 

Length x Width x Depth = M3 
e.g. 6m x 5m x 2m = 60m3 

Project Calculators
The following calculators will give you a good idea of the type and amount of material you will need to complete your project.
Please take into account any settling or uneven surfaces and click on the product links for more details.