Follow our lawn measurement guide to work out the area that needs to be covered with topsoil, bark, soil improver or topdressing. Then simply multiply the area by the depth of product required to calculate the volume you require. Our Product Calculator will work this out for you.
Be careful when buying topsoil by the tonne. A tonne of ordinary topsoil contains just 0.67 of a cubic metre. A bulk bag of Rolawn Blended Loam Topsoil, Vegetable & Fruit Topsoil and Beds & Borders Topsoil measures approximately one cubic metre when packed, up to 50% more product than a tonne of ordinary topsoil.
Recommended depths for topsoil, bark, mulch, soil improver & topdressing
Product
|
Usage
|
Depth
|
|
Topsoil
|
Laying turf or seeding
|
150mm
|
|
Bark
|
Mulching
|
50-75mm
|
|
Play Grade Bark
|
Mulching
Play Areas
|
50-75mm
300mm
|
|
ProMulch®
|
Mulching
|
50-75mm
|
|
Soil Improver
|
Improving heavy clay soil
|
75mm
|
|
Soil Improver
|
Improving light sandy soil
|
30mm
|
|
Lawn Topdressing
|
Topdressing in spring & autumn
|
3mm
|
|
Lawn Topdressing
|
Topdressing in summer
|
1.5mm
|