Not all cemeteries allow memorials with kerbs. However, given the opportunity many families like to mark out a plot in this way.
Here are some tried and tested designs. Typically supplied in sizes 2'6"x6'6" or 3'0"x7'0".
Finnish karin grey granite flush market set. This memorial is set so the top of the kerbs are set flush with the ground.
This is a "mousetrap" style kerbs set with a book on base at the top end, shown here in Indian light grey.
This memorial is a Norwegian Blue pearl ledger slab with headstone, the ledger would be fitted so it sits flush with the grass.