Hello,

I would always recommend a good quality top soil to lay a lawn and
always use Rolawn products, it may cost it more than average but it's
worth it. It needs to be at least 2 to 3 inches deep over the old
ground to give the turf the best bed possible to grow into and also
because of the quality it allows you to make the turf bed as level as
possible.

Edd Smith.
www.charleylandscapes.com