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How to calculate volume & recommended depths

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.

Recommended depths for topsoil, bark, mulch, soil improver & topdressing


Product

Usage

Depth

Topsoil

Laying turf
or seeding

General
planting

Vegetables

150mm

150-200mm

150-400mm

Landscaping
Bark

Mulching

50-75mm

Play Grade
Bark

Mulching

Play Areas

50-75mm

300mm

ProMulch®

Mulching

50-75mm

Soil Improver Compost

Improving heavy
clay soil

Improving light
sandy soil

Mulching

75mm


30mm


50-75mm

Lawn
Topdressing

Topdressing
in spring & autumn

Topdressing
in summer

3mm



1.5mm