Hello everybody, Got a question for you guys... Bidding on sod installation and the site is on gravel pit. no topsoil, very hard and rocky. no lawn, just some weeds. some grading and leveling will be required. area is about 5500sf. couple of trees in the middle with some roots on surface. no steep hills. Now if i add let's say 4" of topsoil and sod on top of it, it'll raise lawn like 5" above existing sidewalk. how do you guys go about that? do you excavate the whole area 5" down before bringing in topsoil and sod???