How deep should topsoil be

Question

Going to turf the garden and keep seeing different depths mentioned, so I’m not sure what’s actually enough for the grass to take properly?

Tim · Answer

Ideal depth of top soil for a lawn should be a minimum 150mm , 6 inches. However good drainage below that is also recommended.

Peter · Answer

Hi 
100-159mm depends on existing ground conditions

Alan · Answer

Hi,

There should be a minimum of 3 inches of good quality topsoil , I.e. seived soil that doesn't contain  stones or twigs

Hope that helps.

Regards Alan

Paul · Answer

If your just turfing the garden then 6 inches is fine

Andrew · Answer

If it’s for turf my first question would be what is wrong with the old lawn?  Is it lack of drainage, was it not turfed before and was a flower bed,? is there underlying rubble.

It’s then not necessarily about how much topsoil is needed but what is going to be underneath it.

How deep should topsoil be

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