The answer to this question depends on what the turf soil is to be used for. Lawn soil can, for example, be applied as a thin layer to do something good for the lawn and stimulate soil life.
On the other hand, the turf soil can also be used for a new installation, in which case of course considerably more soil is required.
Lawn soil for lawn care (thin layer):
Approx. 3 liters of lawn soil per square meter are required for lawn care.
Turf soil for a new lawn:
Approx. 20 liters per square meter are required for a new lawn. It is important that the turf soil is worked in to a depth of approx. 10 cm;